If All the Plumbers Are Skilled, Then If None of the Faucets

Multiple Choice

If all the plumbers are skilled, then if none of the faucets leak, then they will be commended.

A) (x) {(Px • Sx) ⊃ [(y) (Fy ⊃ ∼Ly) ⊃ Cx]}
B) (∃x) (Px • Sx) ⊃ [(y) (Fy ⊃ ∼Ly) ⊃ Cy]
C) (x) (Px • Sx) ⊃ [(y) (Fy ⊃ ∼Ly) ⊃ Cx]
D) (x) {(Px ⊃Sx) ⊃[(y) (Fy ⊃ ∼Ly) ⊃ Cx]}
E) (x) {(Px • Sx) ⊃ [(∃y) (Fy • ∼Ly) ⊃ Cx]}