Which of the Following Statements Is a Definition of an "Extended

Which of the following statements is a definition of an "extended family"?

A) A kinship system in which the inheritance of property is determined through both male and female lines.
B) A nuclear family that maintains close ties with relatives.
C) A family system of three or more generations living together and sharing social rights and obligations.
D) A group of families who have social obligations towards each other.