—What could I get my father for Fathers Day?—getting him a tie?A. Why not B. How about C.

问题补充：

—What could I get my father for Fathers Day?

—getting him a tie?

A. Why not B. How about C. Why don you

答案：

解析：考查句式Why not…?和How about…?的用法。根据题干中的getting形式，应用B，A与C结构后接动词原形；