For the Reaction 2NOCl(g) 2NO(g)+ Cl₂(g), K_c = 8

For the reaction 2NOCl(g) 2NO(g) + Cl₂(g) , K_c = 8.0 at a certain temperature. What concentration of NOCl must be put into an empty 4.00 L reaction vessel in order that the equilibrium concentration of NOCl be 1.00 M?

A) 1.26 M
B) 2.25 M
C) 2.50 M
D) 3.52 M
E) 11.0 M