A Major Difference Between a Nuclear Family and Conjugal Relations

A major difference between a nuclear family and conjugal relations is that:

A) a nuclear family is always a result of marriage whereas a conjugal family need not be
B) in a nuclear family two or more people who are related share a household whereas conjugal relations are characterized by the norms of marriage or other intimate relationships
C) people in a nuclear family are related by ties of blood whereas in a conjugal family they need not be
D) there is greater intimacy in a nuclear family