Which of the Following Is NOT a Commitment Device

Multiple Choice

Which of the following is NOT a commitment device?

A) A non-refundable advance payment to reserve a room at a resort.
B) A manufacturer's 2-year agreement to fix, at no cost to you, anything that breaks on your computer.
C) A pre-nuptial agreement that provides for a large penalty in the event a spouse has an affair.
D) High fines for illegal parking on campus.