The book which for children under 10 was with adults readers.A. intends familiarB. is

问题补充：

The book, which for children under 10, was with adults readers.

A. intends, familiar

B. is intended, popular

C. intends, popular

D. is intended, familiar

答案：

A. intends, familiar

(答案→)B. is intended, popular

C. intends, popular

D. is intended, familiar

解析：考察固定搭配。固定搭配be intended for…为了…；旨在于…；be popular with…受欢迎；be familiar with熟悉…；句意：这本本来为了10岁一下的孩子的书很受成年读者的欢迎。根据句意说明B正确。