If a and b are odd integers which of the following must be an even integer?  Choose the correct choice from the following options: A) a/b B) ab C) (ab)^2 D) ab + b E) (a + b)/b
Certainly (ab + b)   ab+b=b(a+1)   Sine both a &amp; b are Oab + bab + b , we can say ( a + 1 ) is EVEN as Oab + bab + b + 1 = EVEN   Hence there is no doubt that the OA must be (ab + b)   ANSWER:ab + b
<result>D</result>
If a and b are odd integers which of the following must be an even integer?