Which Compliance Technique Is Correctly Defined

Which compliance technique is correctly defined?

A) foot-in-the-door - A person is more likely to comply with a request if he or she has already complied with a smaller request.
B) door-in-the-face - Having refused a large request, a person is more likely to comply with a small request.
C) Both of these compliance techniques are correctly defined.
D) Neither of these compliance techniques is correctly defined.