Thrifty Lays Off Workers Only If Neither National Improves Efficiency

Multiple Choice

Thrifty lays off workers only if neither National improves efficiency nor Enterprise reorganizes.

A) T ⊃ ∼(N ∨ E)
B) ∼(N ∨ E) ⊃ T
C) T ⊃ (∼N ∨ ∼T)
D) (∼N ∨ ∼E) ⊃ T
E) T ≡ ∼(N ∨ E)