Which of the Following Is Not an Example of Consideration

Multiple Choice

Which of the following is not an example of consideration?

A) A promise to stay in a job until a particular project is complete.
B) A promise to your football coach to refrain from riding your motorcycle during football season even though you love riding it.
C) A promise to cook dinner for your roommate for the next six months.
D) A promise to buy skis for $300 if you like them.
E) A promise to stop staying out late at night during exam week.