— my daughter is only ten years old she knows a lot.　 —What a clever girl!　　A. Though B.

问题补充：

— my daughter is only ten years old, she knows a lot.

—What a clever girl!

A. Though B. Because C. Whether

答案：

解析：句意：——尽管我女儿只有十岁，她知道许多。——多聪明的女孩啊！Though尽管Because因为Whether是否，结合句意可知，本题选A。