Which of the following statement is wrong?I. 2-phase locking protocol – McqOptions

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1.	Which of the following statement is wrong?I. 2-phase locking protocol suffer from dead lock.II. Time stamp protocol suffer from more aborts.III. A block hole in a DFD is a data store with only inbound flows.IV. Multivalued dependency among attribute is checked at 3 NF level.V. An entity-relationship diagram is a tool to represent event model.
A.	I, II, II
B.	II, III, IV
C.	III, IV, V
D.	II, IV, V
Answer» D. II, IV, V

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