X is an even number and Y is a positive odd number. Which of the following expressions cannot be even?	Select the correct option
A) (XY)^Y	B) X^3Y^3	C) X^3	D) XY	E) Y^2
If x is even, let x = 0 and see what happens.   A. [(0)(Y)]^Y = 0 (EVEN - ELIMINATE)   B. 0³Y³ = 0 (EVEN - ELIMINATE)   C. 0³ = 0 (EVEN - ELIMINATE)   D. (0)Y = 0 (EVEN - ELIMINATE)   E. Y²   Answer:Y^2
<result>E</result>
X is an even number and Y is a positive odd number. Which of the following expressions cannot be even?