An even and an odd integer are multiplied together. Which of the following could not be the square of their product? Choose the correct option:
A) 36 B) 100 C) 144 D) 225 E) 400
2*3= 
<gadget id="calculator">2*3</gadget>
<output>6</output>
6 and 6^2=36   5*2= 
<gadget id="calculator">5*2</gadget>
<output>10</output>
10 and 10^2=100   3*4= 
<gadget id="calculator">3*4</gadget>
<output>12</output>
12 and 12^2=144   5*4= 
<gadget id="calculator">5*4</gadget>
<output>20</output>
20 and 20^2=400   Answer 225
<result>D</result>
An even and an odd integer are multiplied together. Which of the following could not be the square of their product?