Gate1999_2.6

 For the schedule given below, which of the following is correct:

1            Read
2            Read B
3            Write A
4            Read A
5            Write A
6            Write B
7            Read B
8            Write B

(a) This schedule is serialized and can occur in a scheme using 2PL protocol
(b) This schedule is serializable but cannot occur in a scheme using 2PL protocol
(c) This schedule is not serialiable but can occur in a scheme using 2PL protocol
(d) This schedule is not seralisable and cannot occur in a scheme using 2PL protocol.

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