Which option best defines contradiction?

• A. An inconsistency
• B. A difference between two or more messages or statements which shows that one of the statements must be wrong
• C. An agreement between two or more messages
• D. A similarity in opinions

Answer: (B)

A contradiction happens when two statements clash in such a way that they cannot both be true. The best option captures this precisely by describing a difference between two or more messages or statements that shows one of them must be wrong. It emphasizes the explicit conflict between statements and the idea that at least one is false, which is the essence of a contradiction.

An inconsistency is related but broader and not as specific about two distinct statements opposed to each other. An agreement or a similarity, on the other hand, describes harmony or likeness, not conflict.