[单选题]
Around the mid-20th century, only 20 perc.r) 8 o2v , 6czxgxdjz.*w(ter nx4ejnent o e x*7v/ v9vhdlbup67kf 18- to 34-year-old lived in their parents' home9 ul 7v6v7*dxkpeh/v b.
A.
参考答案: B
本题详细解析: 同义转述题。定位到B段，1960年左右，只有五分之一（20%）的人与父母c5 lf h pg2sc4aj27*hz同住。
