Classical conditioning may play an important role in interpersonal attraction. According to the reinforcement-affect model of attraction (Byrne & Clore, 1970), the extent to which we are attracted to someone can be significantly affected by the degree to which the person is associated with events that elicit positive emotions. For this reason, we are generally attracted to people who say and do the kinds of things that make us feel good. Eventually, we feel good just being around such people. The correct answer is A.