It was of the parents who hold the view that boys are superior to girls to treat their ow

问题补充：

It was of the parents who hold the view that boys are superior to girls to treat their own little girl as a stranger.

A. athletic

B. cheerful

C. guilty

D. cautious

答案：

A. athletic

B. cheerful

(答案→)C. guilty

D. cautious

解析：句意：认为男孩比女孩重要的父母把他们的小女儿当做陌生人对待，他们感到内疚。athletic 体格健壮的；cheerful欢呼的，高兴的， guilty内疚的， cautious 小心的，根据句意故选C。