Choose the correct option about the following schedule.
S:R2(A);W3(A);(commitT3);W1(A);(commitT1);W2(B);R2(C);(commitT2);R4(A);R4(B);(commitT4)
1. S is both recoverable and conflict serializable
2. S is neither recoverable nor conflict serializable
3. S is recoverable but not conflict serializable
4. S is not recoverable but conflict serializable