Which points are on the graph of y = cos 0?

A) (4pi,0) and (pi/3, sqrt3/2)
B) (3pi,-1) and (pi/2,1)
C) (3pi,1) and (pi/2,0)
D) (4pi,1) and (pi/3,1/2)

B) (3pi,-1) and (pi/2,1)