非常晕的一道逻辑（prep1-70）

hebelong

According to a review of 61 studies of patients suffering from severely debilitating depression, a large majority of the patients reported that missing a night's sleep immediately lifted their depression.Yet sleep
deprivation is not used to treat depression even though the conventional treatments, which use drugs and electric shocks, often have serious side effects.

Which of the following, if true, best explains the fact that sleep-deprivation is not used as a treatment for depression?

A) For a small percentage of depressed patients, missing a night's sleep induces a temporary sense of euphoria.
(B) Keeping depressed patients awake is more difficult than keeping awake people who are not depressed.
(C) Prolonged loss of sleep can lead to temporary impairment of judgment comparable to that induced by consuming several ounces of alcohol.
(D) The dramatic shifts in mood connected with sleep and wakefulness have not been traced to particular changes in brain chemistry.
(E) Depression returns in full force as soon as the patient sleeps for even a few minutes.

我的理解：
请问B有关么？depressed与not depressed的比较……
     C 失眠导致的短暂判断能力缺失——>需要治疗，相反
     E depress 会卷土重来，所以不需治疗了
请赐教~~~~谢谢呢~

ALGT

B不能说无关吧

关于一个治疗方法，B说的是施行难度，E说的是效果，在治病面前，本山大叔不是说过“看疗效”么。。。既然是最能解释，个人支持选E