The Wave Function for the Energy Level in a Cubical $\varPsi$

The wave function for the energy level in a cubical box of side L that corresponds to the quantum numbers 1,2,and 3 is

A) $\varPsi$ _1,2,3 = A sin( $\pi$ x/L) sin(2 $\pi$ x/L) sin( $\pi$ x/L)
B) $\varPsi$ _1,2,3 = A sin( $\pi$ x/L) sin( $\pi$ x/L) sin(3 $\pi$ x/L)
C) $\varPsi$ _1,2,3 = sin(2 $\pi$ x/L) sin(3 $\pi$ x/L)
D) $\varPsi$ _1,2,3 = A sin( $\pi$ x/L) sin(2 $\pi$ x/L) sin(3 $\pi$ x/L)
E) $\varPsi$ _1,2,3 = 2A sin( $\pi$ x/L) sin(2 $\pi$ x/L) sin(3 $\pi$ x/L)