Concept:The extended family includes a wider circle of relatives, not only people from one mother.Explanation:The extended family system consists of the nuclear family plus other relatives such as grandparents, uncles, aunts, nephews, and cousins.These members may come from both the father’s and mother’s sides.Therefore, the statement that all members come from the same mother is not true about the extended family system.Answer:C. All members come from the same mother