20 What is the last paragraph mainly about?
(A) Generation gap between parents and children.
(B) The importance of a warm and cozy family.
(C) Advice to multigenerational families.
(D) A famous psychology professor.
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統計: A(11), B(42), C(87), D(2), E(0) #1192256
統計: A(11), B(42), C(87), D(2), E(0) #1192256