If a and b are integers and a b is even, which of the following must

1.	If a and b are integers and a b is even, which of the following must always be even?
A.	ab
B.	a + b + 1
C.	a + b + 1
D.	ab b
Answer» E.

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If a and b are integers and a b is even, which of the following must always be even?

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