The Displacement from Equilibrium of an Oscillating Weight Suspended by a Spring

Multiple Choice

The displacement from equilibrium of an oscillating weight suspended by a spring is given by
$y = 2 \cos 6 t$
Where y is the displacement in centimeters and t is the time in seconds (see figure) .Find the displacement when $t = 7$ .(Round your answers to nearest tenth.)

A) 1.200 cm
B) 1.100 cm
C) 1.000 cm
D) 0.800 cm
E) 1.300 cm