Let x, y and z be distinct
integers, that are odd and positive. Which one of the following statements
cannot be true?

a. xyz^2 is odd

b. (x - y)^2 z is even

c. (x + y - z)^2 (x + y) is even

d. (x - y)(y + z)(x + y - z) is odd

a. xyz^2 is odd

b. (x - y)^2 z is even

c. (x + y - z)^2 (x + y) is even

d. (x - y)(y + z)(x + y - z) is odd

In option d), x-y is even. So, the product of the three terms is even.

So, d) cannot be true.**Write Here**