题目内容：
阅读短文，回答题：
Interpersonal relationships are important because ________
A．they are indispensable to people's social well-being
B．they waken people's desire to exchange resources 考试大|在线⊙考试中心♂
C．they help people to cope with life in the information era
D．they can cure a range of illnesses such as heart disease, etc.
参考答案：
答案解析：