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.)
~(M ≡ ~N)
M / N
(A)Valid (B)Invalid. Counterexample when M and N are true (C)Invalid. Counterexample when M is true and N is false (D)Invalid. Counterexample when N is true and M is false
A