Judge the correctness of the following statements and choose 'True' or 'False' For a given set F of functional dependences (F.D.). any F.D. in its closure F+ can be derived by using Armstrong's axioms (2) It is always possible to achieve the following three goals for a relational database design simultaneously: (a) BCNF; (b) lossless join(c) dependency preservation. (3) In the ODMG object model, the extent of a class contains all of its transient objects. (4) Operation "read(A)" in one transaction is conflict to operation write(B) in another transaction. (5) Even- serial schedule of transactions is a serializable schedule. (6) A lossless-join decomposition ensures that no spurious tuples will be generated. (7) The physical data independence ensures that no change for the database applications is required when the conceptual schema is changed. Correctness: (A) True: (B) False. (8) A database schema is not expected to change frequently, comparing to its corresponding database instance. Correctness: (A) True; (B) False. (9) In the recovery procedure for the deferred-update technique, no undo operation is needed. Correctness: (A) True; (B) False