Construct a complete truth table for the following argument. Then, using the truth table, determine whether the argument is valid or invalid. If the argument is invalid, choose an option which presents a counterexample. (There may be other counterexamples as well.)
I ≡ ~J
I ∨ J / I
(A)Valid (B)Invalid. Counterexample when I and J are true (C)Invalid. Counterexample when I is true and J is false (D)Invalid. Counterexample when J is true and I is false
D