As a key to the whole novel of The Scarlet Letter， the letter A

As a key to the whole novel of The Scarlet Letter， the letter A takes on different layers of symbolic meanings. The（）is one of the salient characteristics of Haw-thome’s art.
A、simplicity
B、straightforwardness
C、self-contradiction
D、ambiguity
【正确答案】：D
【题目解析】：在小说《红字》里，歧义是一大特点。