单选题 Which of the following is NOT the reason that many people prefer not to be assertive?

A、 They would rather be aggressive than be assertive.
B、 It's often better to give people hints than to be straightforward.
C、 Their needs to express themselves take secondary place before important persons.
D、 They tend to give excuses and justifications for their actions.

【正确答案】 A

【答案解析】[解析]根据第三段及第四段第二句可以发现B、C、D都是正确的。而A选项未被提及。