If is even and y is odd, then x + 2y is even. To prove the above statement using a direct proof, we start by assuming: O a. x is even y is odd and x+2y is odd. O b. xis odd or y is even. O c. If x is even and y is odd, then x+2y is even. Od is even, y is odd and x+2y is even Oe. xis even and y is odd. 0