题目内容：
根据下面资料，回答 "Hi there. How′ s it going?" "Oh, fine. Fine. How about this weather, huh?" "Well, I guess we can always use the rain." What is that? This story? Oh, just a little look at small talk. You know, those seemingly meaningless conversations you ha
A.to invade other' s private affairs B.to share a secret between intimate friends C.to open and maintain channels of communication D.to protect one' s own privacy
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