Answer:
The correct answer is A. Manuel has used the door-in-the-face technique to convince his parents to give him $15 for the movies.
Explanation:
In social psychology, Door-to-face is a technique of manipulation and social influence. It can be summarized as follows: If you want someone to fulfill your true request, precede it with another very exorbitant request that this person will certainly not accept. This uses the contrast effect: the first large request makes the correct request seem much smaller.