If a and b are even integers, which of the following is an odd integer?
Choose the correct option
A) ab + 2 B) a(b − 1) C) a(a + 5) D) 3a + 4b E) (a + 3)(b − 1)
If a and b are even integers, then:   A. ab + 2: even + even = even   B. a(b − 1): even(odd) = even   C. a(a + 5): even(odd) = even   D. 3a + 4b: even + even = even   E. (a + 3)(b − 1): (odd)(odd) = odd.   Answer is (a + 3)(b − 1).
<result>E</result>
If a and b are even integers, which of the following is an odd integer?