单项选择题

Passage Two
Questions 30 to 32 are based on the passage you have just heard.

Why does the speaker say it may be difficult for people to love their neighbors()

A.They are fully occupied with their own business.
B.Not many of them stay in the same place for long.
C.Not many of them can win trust from their neighbors.
D.They attach less importance to interpersonal relations.