题目内容：
根据下列材料回答 题。Forgive and forget. Most of us find the forgetting easier, but maybe we should work on the for- giving part. "Holding on to hurts wears you down physically and emotionally, "says Stanford Uni- versity psychologist Fred Luskin, author of Forgive for Good. "Forgiving someone can be a powerful remedy. "
In a recent study, Charlotte Van Oyen Witvliet, assistant professor of psychology at Hope Col- lege in Holland, Michigan, and colleagues asked 71 volunteers to remember a past hurt. Tests re- corded sudden increases in blood pressure, heart rate and muscle tension--the same responses that occur when people are beside themselves. Research has linked temper and heart diseases. When the volunteers were asked to imagine forgiving those who'd wronged them, they remained calm by comparison.
What's more, forgiveness can be learned, insists Luskin, director of the Stanford Forgiveness Project. "We teach people to rewrite their story in their minds, to change from victim to hero. If the hurt is from a husband's or a wife's unfaithfulness, we might encourage them to think of themselves not only as a person who was cheated on, but as the person who tried to keep the marriage togeth- er. "Two years ago Luskin tested his method on five Northern Irish women whose sons had been murdered. After undergoing a week of forgiveness training, the women's sense of hurt, measured u- sing psychological tests, had fallen by more than half. They were also much less likely to feel de- pressed and angry. "Forgiving isn't about regarding what happened as harmless or acceptable, "says Luskin. "It is about breaking free of the person who wronged us. "
The early signs that forgiving improves overall health are promisings. A survey of 1,423 adults by the University of Michigan's Institute for Social Research in 2001 found that people who had forgiven someone in their past also reported being in better health than those who hadn't.
However, while 75 per cent said they were sure God had forgiven them for past mistakes, only52 per cent had been able to find it in their hearts to forgive others. Forgiveness, it seems, is still divine.
In Luskin's opinion, people could enjoy better health if they A．hold past hurts back
B．avoid the wrongdoers
C．become less emotional
D．let off those who hurt them
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