It can not be a(n) ___that four jewellery stores were robbed in one night.

A．coincidence

B．accident

C．incident

D．chance

父权的家族制度衰微，于是，以安慰晚年父母或增加家庭劳力和私有财产继承为目的而收养子女，此时即（）

A.为亲的收养

B.为家的收养

C.为子女的收养

D.为父母的收养