If a and b are odd numbers, then which of the following is even ?

1. 

If a and b are odd numbers, then which of the following is even ?
[A]. a + b
[B]. a + b + 1
[C]. ab
[D]. ab + 2
[E]. None of these

Answer: Option A

Explanation:

The sum of two odd number is even. So, a + b is even.

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