A Body Oscillates with Simple Harmonic Motion Along the X $\pi$

Multiple Choice

A body oscillates with simple harmonic motion along the x axis.Its displacement varies with time according to the equation x = 5.0 cos ( $\pi$ t) .The magnitude of the acceleration (in m/s²) of the body at t = 1.0 s is approximately

A) 3.5
B) 49
C) 14
D) 43
E) 4.3