Which of the following is the best title of this passage? A．Family． B．American Families. C．Family Types． D．Four Family Types in America.

A.Family．
B.American
C.Family
D.Four

【参考答案】

D
全文讲了四种不同类型的家庭：两代人的家庭、三代人的家庭、单亲家庭和再婚家庭。