Which of the following sentences contains an idiom?

I'm going to have the jumbo shrimp for dinner.

Lisa was ready to go and willing to drive, so we all hopped into her car and left.

Claire had too many essays to grade, so she farmed out half of them to other teachers.

All of the choices are correct.

all of them because an idiom is a phrase or an expression that has a figurative meaning

All the three given sentences contains idioms.

Explanation:

Idioms used - Jumbo, Hopped into, Farmed out

All of the given statements contain an idiom.

In the first sentence, the word "jumbo" is used to describe the size of the shrimp while in the second sentence, the word "hopped into" has been used to indicate that all of them boarded the car and in the third sentence, the word "farmed out" is used to indicate that the work has been assigned to others. Hence, we can conclude that, idioms have been used in all the three given sentences.