Although the Nuclear Family Has Been the Ideal in the U.S.for

Although the nuclear family has been the ideal in the U.S.for most of the 20th century:

A) now only slightly more than half of American families are nuclear families.
B) families today look like the households portrayed in the 1950s sitcoms.
C) now families prefer to be extended and not nuclear.
D) now only about one household in four is nuclear.
E) now only about one household in three is nuclear.