CHARLOTTE, N.C. — The Celtics have some contract options to decide by tomorrow, and they are prepared to use all their allotted time.

On the line are rookie deal prerogatives for Marcus Smart, James Young and Terry Rozier. The Celts have until tomorrow the right to pick up fourth-year guaranteed options on 2017-18 for Smart and Young, while Rozier can have his third year locked in now.

“We’ll wait until the end before we exercise any of our options,” said president of basketball operations Danny Ainge, whose club moved to 2-1 with a 104-98 win over the Hornets last night. “The ones that we do or we don’t, we’ll wait until the 31st.”

The C’s aren’t discussing any of the specifics, but it’s fair to assume that Smart, who can be wrapped up for $4,438,020 for next year, and Rozier ($1,988,520) are certain to be retained. In fact, they will be huge bargains at their prices, especially when considering what the new television deals and resultant spike in the salary cap have done to contracts.

The call will be tougher for Young, who just beat out R.J. Hunter for the final roster spot. He would be guaranteed $2,803,507 for 2016-17 if the C’s pick up the option, but word is the club is still looking around for a trade. While nothing appeared to be close this weekend on that front, it’s obvious the Celts would wait for the deadline on the off chance someone could call with a proposal.

Speaking of what goes into these decisions, Ainge said, “Obviously you have to think about cap flexibility going forward and, when we look at the players, if those are good deals for us as we’re trying to build the team. Every player is unique and different.”

If the Celtics decline to pick up an option, it could have no real bearing on his future with the club. The C’s could still pursue such players when they become free agents.

“There’s nothing that says they won’t be with us, regardless of what we do,” said Ainge.

Rough trip overall

The Celtics’ trip to Chicago was bad to the last drop. After giving up 18 offensive rebounds and 18 second-chance points in their Thursday loss to the Bulls, the C’s were delayed on the tarmac at Midway Airport when their chartered aircraft developed a mechanical problem.

In a discussion of how the Hornets had played Friday night in Miami and that the Celts would thus have more time to prepare, Brad Stevens said, “We had a lot of time on the plane (Friday). I think it was six (hours). It was 20 minutes per offensive rebound. We had a punishment. We had 20 minutes per offensive rebound allowed, I guess. It’s all part of the experience.

“But, hey, we were sitting there and guys enjoyed it. It’s part of it, part of travel.”

Smart delay

Smart (left ankle sprain) is not on the trip, but he’s very close to returning.

“He’s improving,” said Stevens. “I don’t have the exact return date, but we’ll be off (today) and I anticipate he’ll at least go through some of (tomorrow’s) practice. I don’t know if he’ll be live. I don’t know if he’ll be ready to go by Wednesday or not.” …

Jordan Mickey got his first action of the season last night, netting three points and two rebounds in eight minutes. …

The Celtics actually shot slightly better on 3-pointers (15-of-31, 48.4 percent) than inside the arc (24-of-50, 48 percent).

Battlin’ buddies

One of the oddities in the loss to the Bulls was Marquette friends Jae Crowder and Jimmy Butler getting into a minor standoff after Crowder was called for charging into Butler and the latter appeared to trip Crowder as his pal was getting up. The teams quickly converged, and shoving ensued. Eventually, Crowder, Butler, Isaiah Thomas and Rajon Rondo were all hit with technical fouls.

It should make for an interesting return engagement when the teams meet at the Garden in three days.

Asked yesterday if he had texted with or spoken to Butler, Crowder said, “No. But I’ll see him … Wednesday?”

On the matter of two friends getting into it, he said, “Playing basketball, I mean, (there are) no friends on a basketball court. I’d get into it with my own brother on a basketball court, so it is what it is.”