Pretend that your friend, Bill, asks you for a small favor which is to borrow your car for the afternoon to do some grocery shopping. You agree to allow him to do this because you aren't going to be using your car at that time anyway. The following week, Bill asks you if he can stay with you for a few weeks while his house is being remodeled. Despite this being a major inconvenience, you feel compelled to let him do this. This best illustrates:
A. The fundamental attribution error
B. Kelley's Covariation Theory
C. The door-in-the-face phenomenon
D. The foot-in-the-door phenomenon