Determine Whether the Given Argument Is Valid or Invalid $\lor$

determine whether the given argument is valid or invalid. If it is invalid, select a counterexample.
-1. (∀x) [Fx ⊃ (Gx $\lor$ Hx) ]
2) (∀x) (Gx ⊃ ∼Ix)
3) ∼(∃x) (Hx • Ix)
4) Fg / ∼Ig

A) Valid
B) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: True Hg: True Ig: True
C) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: False Hg: True Ig: True
D) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: False Hg: False Ig: True
E) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: True Hg: False Ig: True

Correct Answer:

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