Correct Response: B. Extended families include parents, children, and relatives such as grandparents, aunts, and uncles. A nuclear family (A) would include only the young couple and their new child. A blended family (C) would require that at least one spouse have children from a previous relationship. Although it is possible that the young couple is same-sex and therefore one type of nontraditional family (D), this family unit would have already been in place rather than being established when the widowed mother moved in.