Given the Argument: K ∨ E / E ⊃ ∼

Multiple Choice

Given the argument: K ∨ E / E ⊃ ∼ K // K ≡ ∼ E
This argument is:

A) Invalid; fails in 2^nd line.
B) Valid.
C) Invalid; fails in 1^st line.
D) Invalid; fails in 4^th line.
E) Invalid; fails in 3^rd line.