If S is the set {bolt, nut, washer, screw, bracket, flange}, and A and B are sets {bracket, nut, flange} and {bolt, bracket} respectively, then what combinations of A and B produce the following sets as outcomes?

(a) {bracket}

(b) {flange, bracket, bolt, nut}

(c) {washer, bolt, screw}

(d) {screw, flange, nut, bolt, washer}