Final answer:
Martha may want to live near the university to feel comfortable within a familiar community, take advantage of social placement opportunities, and contribute to her overall educational experience and social mobility.
Step-by-step explanation:
Understanding why Martha wants to live near the university involves analyzing potential benefits related to her college experience. Based on the provided information, it is not explicitly stated which option is correct, but we can infer possible reasons. Martha might choose to live near the university for a sense of community and familiarity, as indicated by her comfort in walking on a block where she knows many of the people. Moreover, college is a time for personal growth and career preparation, suggesting that being close to the university could offer Martha easier access to social placement opportunities. These opportunities might include networking with professors and peers, participating in work-study programs, and engaging in community service, all of which contribute to her educational experience and upward social mobility.