Which is a correct description of the graph below?
The graph shows a sine wave with a minimum value of negative 1 and a maximum value of 1. The wave completes 1 cycle in an interval from 0 to 2 pi. The wave passes through (0, 0), slopes down and hits a minimum value of negative 1 at pi over 2, has a value of 0 again at pi, hits a maximum value of 1 at 3 pi over 2 and has a value of 0 again at 2 pi.
A) y= sin 0 shifted to the right by pi units
B) the graph of y=sin 0 shifted to the right by pi/2 units
C) y=cos(0-pi/2)
D) the graph of y=sin 0 shifted to the left by pi/2 units