Let S be the schedule: S: R1(X), W2(Y), R1(Y), R2(X), R3(X),…
Let S be the schedule: S: R1(X), W2(Y), R1(Y), R2(X), R3(X), C2, R3(Y), C1, C3 Note that, R, W, C refer to read, write, commit operations respectively; 1, 2, 3 are the indexes of transactions; X, Y are data items. For example, R1(X) means Transaction 1 reads X. Select all the correct statements: