CONROE, Texas (KTRK) -- A 25-year-old mother has been sentenced to prison for 40 years after pleading guilty to trying to sell her toddler daughter for sex.In February, the Montgomery County Precinct 1 Constable's Office was conducting an investigation into child exploitation. Sarah Peters entered into an agreement with an undercover officer to sell her 2-year-old daughter for sex.Peters brought the girl to Conroe in order to allow a man to have sex with the girl for $1,200. She was arrested at the Greyhound bus station in Montgomery County, and her daughter was taken into protective custody.Peters entered a guilty plea to three felony offenses: sexual performance of a child, attempted human trafficking and promotion of prostitution of a child. She was sentenced to 40 years in prison, with additional sentences to run concurrently.Peters will not be eligible for parole until 2038.