children vs a seat 違反名詞一致性==>所有小孩都坐在一個椅子上

(可是椅子不是特徵,所以應該不能用人猿的聲道那題的方法解讀吧,苦惱中)

Concerned at the increase in accident fatalities,Tennessee adopted a child-passenger protection law requiring the parents of children under four years of age to be restrained in a child safefy seat.
(a)the parents of children under four years of age to be restrained in a child safefy seat.
(b)the restraint of parents of children under four years of age in a child safefy seat.
(c)that parents restrain children under four years of age in a child safefy seat.
(d)that children be restrained under four years of age in a child safety seat by their parents
(e)children to be restrained under four years of age by their parents in a child safety seat.