4. Make a conjecture about the product of an even and an odd number based on the following pattern:
2=2x1
6=3x2
30=5x6
56=7x8
90 = 9 x 10
and so on.
A.) The product of an even and an odd number is a prime number.

B.) The product of an even and an odd number is an even number.

C.) The product of an even and an odd number is equal to the square of the odd factor.

D.) The product of an even and an odd number is equal to the sum of the factors.