The contrapositive of the statement "If you will work, you will earn money" is :

The statement A $$ \to $$ (B $$ \to $$ A) is equivalent to :

The negation of the statement

$$ \sim p \wedge (p \vee q)$$ is :

For the statements p and q, consider the following compound statements :

(a) $$( \sim q \wedge (p \to q)) \to \sim p$$

(b) $$((p \vee q) \wedge \sim p) \to q$$

Then which of the following statements is correct?