Choose the closest paraphrased version after the following sentence or the italicized part.
If they [parents] give in, they feel regret and resentment over having been a pushover.（ ）
A、
...they make up their mind to be more strict.
B、
...they never regret that they have given in.
C、
...they feel upset that they haven’t been kind enough.
D、
...they are sorry and angry that they haven’t been firm enough.
【正确答案】：D
【题目解析】：
句子释义：如果父母对孩子妥协了，他们也会因自己意志不坚定而悔恨。pushover：容易被打败的对手。
D选项“他们因自己不够坚定而感到后悔和生气”符合题意。