题目：Which one is NOT the cause of the generation gap
A. Young people like to choose their own lifestyles.
B. American society is changing very fast.
C. Parents place high hopes on their children.
D. Modem education makes them think differently.
喵查答案：D
[解析] 由本文第二、三、四段可知，选项D文中并未涉及。
