Honda's Reducing Inventory Is a Sufficient and Necessary Condition for Toyota's

Multiple Choice

Honda's reducing inventory is a sufficient and necessary condition for Toyota's closing a factory; also, Nissan lays off workers only if either Chrysler or Fiat does not improve mileage.

A) (H ⊃ T) • [N ⊃ ∼(C ∨ F) ]
B) H ≡ {T ⊃ [N ⊃ (∼C ∨ ∼F) ]}
C) [H ≡ (T • N) ] ⊃ (∼C ∨ ∼F)
D) (H ≡ T) • [(∼C ∨ ∼F) ⊃ N]
E) (H ≡ T) • [N ⊃ (∼C ∨ ∼F) ]