1 . If A is an integer, which of the following CANNOT be inferred from the statement above?

• A. If A is a multiple of 5, then a is a multiple of 10.
• B. If A is not a multiple of 5, then a is not a multiple of 10.
• C. A necessary condition for A to be a multiple of 10 is that A is a multiple of 5.
• D. A is multiple of 10 implies that a is a multiple of 5.

Answer: Option A

Explanation: