Twenty women agreed to go on TV and compete for a marriage proposal from Joe Millionaire. In the last episode, Joe selected Zora. Poor Zora, she committed to vie for Joe long before she learned the sad truth that Joe earned less than 20 thousand dollars a year. And, even after learning the truth, Zora agreed to try a relationship with him anyway. This is an example of which technique?
a) Low-ball
b) That's-not-all
c) Door-in-the-face
d) Mere exposure