Final answer:
The complementarity hypothesis predicts Mary's attraction to Shane due to their opposite personality traits.
Step-by-step explanation:
The student's question is asking about the factor that predicts Mary's attraction to Shane, a quiet, introverted man, even though she is talkative and extraverted. The correct answer to this question is the complementarity hypothesis. According to this hypothesis, individuals are attracted to those who possess qualities that they themselves lack. In this case, Mary's talkative and extraverted nature might align with Shane's quiet and introverted personality, creating a complementary dynamic.