74. Consider the following statementsP: Suman is brilliantQ : Suman is richR: Suman is honestThe negation of the statement Suman is brilliantand dishonest if and only if Suman is rich canbe expressed as(1) ~P∧ (Q ↔ ~ R) (2) ~ (Q ↔ (P ∧ ~ R))(3) ~ Q↔ ~ P ∧ R (4) ~ (P ∧ ~ R) ↔ Q