The Inverse Laplace Transform Of $F ( s ) = 3 / \left( s ^ { 2 } + 1 \right)$

Multiple Choice

The inverse Laplace transform of $F ( s ) = 3 / \left( s ^ { 2 } + 1 \right)$ is

A) $\cos ( 3 t )$
B) $\sin ( 3 t )$
C) $3 \sin ( 3 t )$
D) $3 \sin t$
E) $3 \cos t$