Which of the following is correct? Her illness had run its course

Her illness had run its coarse

Which of the following is correct? He had a head full of coarse hair

He had a head full of course hair

Which of the following is correct? This herb has a coarser flavour

This herb has a courser flavour

Which of the following is correct? Of coarse I care about you

Of course I care about you

Which of the following is correct? They wore course linen dresses

They wore coarse linen dresses

Which of the following is correct? I enrolled on a computer coarse

I enrolled on a computer course

Which of the following is correct? This wine's harsh and coarse

This wine's harsh and course

Which of the following is correct? Follow the coarse of the river

Follow the course of the river

Which of the following is correct? His language is vulgar and course

His language is vulgar and coarse

Which of the following is correct? Water was coarsing down the road

Water was coursing down the road