Simplify Boolean function represented in sum of product of min-terms,
$$F(x, y, z) = \sum (0, 2, 4, 5, 6)$$

A

$$z' + xy'$$

B

$$x' y' z' + xyz + xy'z'$$

C

$$xyz + x' + y' + z'$$

D

$$xy + yz + zx$$