Not Both Hertz Runs a Sale and Thrifty Lays Off

Multiple Choice

Not both Hertz runs a sale and Thrifty lays off workers if either Avis buys new cars or Budget lowers rates.

A) (∼H • ∼T) ⊃ (A ∨ B)
B) (A ∨ B) ⊃ (∼H • ∼T)
C) ∼(H • T) ⊃ (A ∨ B)
D) (A ∨ B) ⊃ ∼(H • T)
E) (A • B) ⊃ ∼(H ∨ T)