【阅读选择】During the hours when you labour through your work you may say that you’re "hot". That’s true. The time of day when you feel most energetic is when your cycle of body temperature is at its peak. For some people the peak comes during the morning. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar monologues as: "Get up, John！You’ll be late for work again!" The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has.Which of the following may lead to family quarrels according to the passage？
A.Unawareness of energy cycles. B.Familiar monologues. C.A change in a family member’s energy cycle. D.Attempts to control the energy cycle of other family members.正确答案A
