题目：
There are seven people in Kangkang's family. They are his grandparents, his parents, his uncle,
aunt and him. So we call it . [ ]
A. extended family
B. nuclear family
C. DINK family
D. celibate (独身主义者)
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A
