Determine whether each of the following schedules are conflict serializable. Show how you arrived at yourconclusions: (a) r1(A);w1(A);r2(B);w2(B);r2(A);w1(B) ;
(b) r1(A);r2(A);r2(B);w2(B);w1(A);
(c) r2(A);r1(B);w2(A);r3(A);w1(B);w3(A) ;r2(B);w2(B);
(d) w1(A);r2(A);w1(B);w3(C);r2(C);r4(B) ;w2(D);w4(E);r5(D);w5(E);