填空。

《蒲柳人家》是我国______（时代）作家______（姓名）的中篇小说代表作。“蒲柳人家”在作品中代指______。

Part of the reason Charles Dickens loved his own novel, David Copperfield, was ________ it was rather closely modeled on his own life.

A．what

B．why

C．that

D．whether