What do we learn from the experiment of Wood, Lee and Perunovic? ( )(本题2.5分)

A、 It is important for people to continually increase their self-esteem.
B、 Forcing a person to think positive thoughts may lower their self-esteem.
C、 Self-approval can bring a positive change to one’s mood.
D、 People with low self-esteem seldom write down their true feelings.