A positive integer is called balanced if and only if it can be written as the sum of two or more consecutive positive integers. For example, is balanced since , and is balanced since .
A (true) theorem states that:
A positive integer is balanced if and only if it is not a power of .
So are precisely the positive integers that are not balanced.
Which one of the following statements is not true?
AEvery odd number greater than is balanced.
BIf is balanced, then is balanced.
CIf and are balanced, then is balanced.
DIf is not balanced, then is balanced.