In a group discussion, which of these is the best example of challenging the credibility of a source?
A. I disagree with Constance Miller that Christopher Marlow could
have written the plays of William Shakespeare.
B. Although Henry Taylor's article about Hamlet was once interesting
it's over 50 years old; scholars have moved on.
C. The theater scene from Dickens's Great Expectations proves the
author's lighthearted attitude toward theater.
D. Iku Saito argues that Homer was the greatest writer of epics, but
it's a common flaw to call the first the greatest.