Critical Reasoning #7

Saturday, July 15, 2006

If A, then B.
If B, then C.
If C, then D.

If all of the statements above are true, which of the following must also be true?
(A) If D, then A.
(B) If not B, then not C.
(C) If not D, then not A.
(D) If D, then E.
(E) If not A, then not D.

Note: Post your answer along with an explanation if required. Highlight this note to check your answer. Answer: C