The Reaction C₂H₅Cl(g) $\to$ C₂H₄(g)+ HCl(g)has a Rate Constant of Approximately 4

The reaction C₂H₅Cl(g) $\to$ C₂H₄(g) + HCl(g) has a rate constant of approximately 4.20 $\times$ 10^-5 s^-1 at 700 K.What is the reaction rate if 123.8 g C₂H₅Cl is placed in an 8.00 L container at 700 K?

A) 1.75 $\times$ 10^-4 M/s
B) 3.36 $\times$ 10^-4 M/s
C) 6.50 $\times$ 10^-4 M/s
D) 1.01 $\times$ 10^-5 M/s
E) 8.01 $\times$ 10^-5 M/s