At 340K,K_P = 69 for the Reaction H₂(g)+ I₂(g) 2HI(g)

At 340.K,K_P = 69 for the reaction H₂(g) + I₂(g) 2HI(g) .Suppose 50.0 g of HI is injected into an evacuated 5.00-L rigid cylinder at 340.K.What is the total pressure inside the cylinder when the system comes to equilibrium?

A) 2.60 atm
B) 1.76 atm
C) 0.424 atm
D) 2.18 atm
E) 0.171 atm