The product of a non-zero whole number and its successor is always (A) an even number (B) an odd number (C) a prime number (D) divisible by 3

Dear Student

correct option is (A) i.e an even number
The product of a non-zero whole number and its successor is always an even number.
For example: -
6 × 7 = 42,
7 × 8 = 56

Thanks