Find the Displacement of a Simple Harmonic Wave of Amplitude

Multiple Choice

Find the displacement of a simple harmonic wave of amplitude 6.44 m at t = 0.71 s.Assume that the wave number is 2.34 m^-1,the angular frequency is 2.88 rad/s,and that the wave is propagating in the +x direction at x = 1.21 m.

A) 4.55 m
B) 1.05 m
C) 3.54 m
D) 2.25 m