Which of the Following Is True Regarding the Foot-In-The-Door Technique

Which of the following is true regarding the foot-in-the-door technique?

A) People are more likely to agree to a second request after denying in initial, smaller request.
B) People are more likely to agree to a second request after agreeing to an initial, smaller request.
C) People are more likely to agree to a second request after denying in initial, larger request.
D) People are more likely to agree to a second request after agreeing to an initial, larger request.