children under eight years old are still unable to take care of themselves.A. To be fran

问题补充：

, children under eight years old are still unable to take care of themselves.

A. To be frank

B. As a result

C. Generally speaking

D. To tell you the truth

答案：

A. To be frank

B. As a result

(答案→)C. Generally speaking

D. To tell you the truth

解析：短语辨析. To be frank坦白的说; As a result结果;Generally speaking一般而言;To tell you the truth说实话,老实告诉你.根据下文,八岁以下的孩子们仍旧不能照顾他们自己.结合语境可知选C.