Which of the following sets of four coordinates could not be the four vertices of a square?
A. (-1,0), (-1,2), (-3,2), (-3,2)
B. (1,3), (3,-3), (1,-5), (3,-5)
C. (1,0), (4,3), (4,-3), (7,0)
D. (0,-2), (0,-4), (-3,2), (-3,-4)