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.
OA is C
ABCD
This topic has expert replies
-
- Senior | Next Rank: 100 Posts
- Posts: 38
- Joined: Sat Nov 08, 2008 4:36 am
-
- Master | Next Rank: 500 Posts
- Posts: 168
- Joined: Thu Nov 13, 2008 4:34 am
- Location: Pittsburgh
- Thanked: 9 times