Determine the strictest recoverability condition (non-recoverable, recoverable, cascadeless, or strict) that each of the following hypothetical (i.e., the commit operations may become aborts upon actual execution) schedules satis es. Unless the schedule is strict, justify less strict condition by pointing broken condition rules, if any are broken.

A) R1(X);W1(X);R1(Y );R2(Y );W2(Y );W1(Y );C1;R2(X);W2(X);C2;

Circle your choice: non-recoverable recoverable cascadeless strict

B). R1(X);R2(X);R1(Y );R2(Z);W1(X);R1(Z);W2(Z);C2;W1(Y );C1; Circle your choice: non-recoverable recoverable cascadeless strict

C) R1(X);W1(X);R2(Z);R2(Y );R2(X);W2(Y );C2;C1; Circle your choice: non-recoverable recoverable cascadeless strict