What Is the Equilibrium Constant, K P , for the Reaction

What is the equilibrium constant, K p , for the reaction below if the equilibrium partial pressures are P NO = 0.0950 atm, P Cl2 = 0.171 atm, and P NOCl = 0.280 atm?
2 NO (g) + Cl₂ (g) 2 NOCl (g)

A) 4.55×10 ^{- 3}
B) 1.97×10 ^{- 2}
C) 5.80×10 ^{- 2}
D) 17.2
E) 50.8