This question is about bound and free variables in predicate wffs. Pick the correct answer for each statement. 3x P(x) - Vy R(x, y) 1. 3x ((P(x) v Qly))Vy R(x, y)) No variables are free, they are all bound 2. x is free and y is bound 3x ((P(x) VQ(x)) - Vy R(x, y)) 3. y is free and x is bound 3x P(x) v Q(x) - Vy R(x, Y)