In a group therapy setting, one member is very demanding, repeatedly interrupting others, and taking most of the group time. The nurse’s best response would be（）

A. "Will you briefly summarize your point because others need time also"

B. "Your behavior is obnoxious and drains the group. "

C. To ignore the behavior and allow him to vent.

D. "I’m so frustrated with your behavior. "

造成土地资源的丧失和破坏的主要原因是（）。

A.滥伐森林，滥垦草地，造成水土流失严重，沙漠扩大

B.自然原因

C.气候原因

D.战争、自然灾害