If x and y are different integers, both divisible by 11, then which is not necessarily true?	Choose the correct choice from the following choices:
A) x^2 + y^2 is divisible by 11 B) x - y is divisible by 11 C) xy is divisible by 11 D) x + y is divisible by 11 E) x + y is divisible by 22
Let x = 11k and let y = 11j.   Then x+y = 11(k+j) and k+j could be even or odd.   Thus 11(k+j) is not necessarily divisible by 22.   The answer is x + y is divisible by 22.
<result>E</result>
If x and y are different integers, both divisible by 11, then which is not necessarily true?