Question: Which statement(s) is/are correct? Statement A: The query parser optimizes and simplifies a query and then passes it on to the query executor. Statement B:

Which statement(s) is/are correct? Statement A: The query parser optimizes and simplifies a query and then passes it on to the query executor. Statement B: In the DBMS architecture, the storage manager takes care of concurrency control.

a. Only A.

b. Only B.

c. A and B

d. Neither A nor B.

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