Which of the Following Indicates the Difference Between Extended Families

Which of the following indicates the difference between extended families and kinship networks?

A) Kinship networks include people who are chosen by mutual interests or affection.
B) Family members may NOT be excluded from a kinship network, but nonfamily members MAY be excluded from an extended family.
C) Extended families are always larger and involve at least three generations.
D) There is no difference between extended families and kinship networks.