单选题

A thorough search of Edgar Allan Poe's correspon- dence has turned up not a single letter in which he mentions his reputed morphine addiction. On the basis of this evidence it is safe to say that Poe's reputation for having been a morphine addict is undeserved and that reports of his supposed addiction are untrue.

Which of the following is assumed by the argument above?

【正确答案】 E
【答案解析】