The Wave Function Y(x,t)for a Standing Wave on a String

Multiple Choice

The wave function y(x,t) for a standing wave on a string fixed at both ends is given by y(x,t) = 0.080 sin 6.0x cos 600t where the units are SI.The amplitudes of the traveling wave that result in this standing wave are

A) 0.04 m
B) 0.08 m
C) 0.02 m
D) 0.16 m
E) impossible to tell given this information about the standing wave.