Newspaper editors should not allow reporters to write the headlines for their own stories. The reason for this is that, while the headlines that reporters themselves write are often clever, what typically makes them clever is that they allude to little-known information that is familiar to the reporter but that never appears explicitly in the story itself.

Which of the following, if true, most strengthens the argument?

(A) The reporter who writes a story is usually better placed than the reporters' editor is to judge what the story's most newsworthy features are.
(B) To write a headline that is clever, a person must have sufficient understanding of the story that the headline accompanies.
(C) Most reporters rarely bother to find out how other reporters have written stories and headlines about the same events that they themselves have covered.
(D) For virtually any story that a reporter writes, there are at least a few people who know more about the story's subject matter than does the reporter.
(E) The kind of headlines that newspaper editors want are those that anyone who has read a reporter's story in its entirety will recognize as clever.

OA: E

Can somebody please explain why D is not the answer. Thanks!