a, b, c, d, and e are five consecutive integers in increasing order of size. Which one of the following
expressions is not odd?  Select the correct option:
A) a + b + c	B) ab + c	C) ab + d	D) ac + d	E) ac + e
lets see the choices..   (A) a + b + c   a+a+1+a+2=3a+2..   if a is even, it is EVEN..   if a is odd, it is ODD..   (B) ab + c   a(a+1)+a+2+ +1+ +2= 
<gadget id="calculator">+ +1+ +2</gadget>
<output>3</output>
3a+2..   if a is even, it is EVEN..   if a is odd, it is ODD..   (B) ab + c   a(a+1)+a+2=a^2+2a+2..   a(a+2)+2...   This will be O/E if a is O/E..   (C) ab + d   a(a+1)+a+3=a^2+2a+3..   a(a+2)+3...   This will be opposite of a.   .   (D) ac + d   a(a+2)+a+3=a^2+3a+3..   a(a+3)+3...   This will always be odd, as a(a+3) will always be even   (E) ac + e   a(a+2)+a+3=a^2+3a+3..   a(a+3)+4...   This will always be even, as a(a+3) will always be even   ac + e must be the correct answer.
<result>E</result>
a, b, c, d, and e are five consecutive integers in increasing order of size. Which one of the following
expressions is not odd?