题目内容：
根据以下资料，回答题。
Whichofthefollowingisnotaworrytomanypeopleaboutnewwaysofbabymaking? A．Sexselectiongoesagainstnatur
B．Choosinggenderleadstoanimbalanceinthesexrati
C．Preferenceofaboyoveragirlwillbeterribleforsociet
D．Itisimpossibletoavoidasex-linkedgeneticdiseas
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答案解析：