How Would a Sociologist Define "Family

How would a sociologist define "family"?

A) two or more individuals related by blood, marriage, or adoption who share a household
B) an interdependent social group bound by legal, biological, or emotional ties
C) both the nuclear family and the extended family, to the extent that family members share emotional and material responsibilities
D) a group of related people who share a household
E) almost any social group so long as they share responsibilities for raising children