Select the exclusion that fits best with this problem.

-6xz/yz
A). x = 0
B). x, y, z = 0
C). 1 + y + y 2, y = 0, 1 - y = 0
D). a, b = 0, a 2 + ab + b2 = 0
E). 2x - 1 = 0, 4x 2 + 2x + 1 = 0