List the point coordinates of both the zinc and sulfur atoms for a unit cell of the zinc blende crystal structure.
A. Zinc: (0, 0, 0), Sulfur: (0.25, 0.25, 0.25)
B. Zinc: (0, 0, 0), Sulfur: (0.5, 0.5, 0.5)
C. Zinc: (0.5, 0.5, 0.5), Sulfur: (0, 0, 0)
D. Zinc: (0.25, 0.25, 0.25), Sulfur: (0.75, 0.75, 0.75)