单选题 25. One of the legends that has been attached to the nineteenth-century writer Edgar Allan Poe is that he was addicted to morphine. Poe discussed virtually every known aspect of his life in his letters. However, nowhere in his voluminous correspondence does he mention his reputed morphine addiction. On the basis of this evidence, it is safe to conclude that reports of his supposed addiction are untrue.
Which of the following is an assumption on which the argument depends? ______

A、 The symptoms that legend attributes to Poe and that have been taken as evidence of morphine addiction could instead have been caused by a different condition
B、 Poe had enemies whose own careers could have been advanced if rumors that Poe was addicted to morphine were widely believed
C、 Poe would not have refrained, out of any considerations of privacy or reputation, from mentioning in his correspondence any addiction that he might have had
D、 Reports claiming that Poe was addicted to morphine did not begin to circulate until after his death
E、 None of the reports of Poe's supposed addiction to morphine can be traced to individuals who knew Poe personally

【正确答案】 C

【答案解析】 C：选项取反。爱伦·坡会隐藏他的上瘾现象→爱伦·坡的信件中找不到上瘾记录就不能说明爱伦·坡不对吗啡上瘾→削弱原文，正确。另外，既然原文通过爱伦·坡的信件中没有上瘾的记录就说明爱伦·坡不上瘾，其前提之一就是爱伦·坡的信件中的描述都是真的，符合该选项。
A：该选项只能说明传说的准确性。但是本文想要研究的是爱伦·坡的信件的记录和他是否真的对吗啡上瘾之间的关系，因此属于无关选项，不选。
B：该选项错误的原因同选项A。
D：爱伦·坡是否对吗啡上瘾和关于其上瘾的报告何时开始流传无关。
E：报告是否可以追溯到个人和爱伦·坡是否真的上瘾无关。