 
			 
			MCQOPTIONS
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				| 1. | _______ means that data used during the execution of a transaction cannot be used by a second transaction until the first one is completed. | 
| A. | Serializability | 
| B. | Atomicity | 
| C. | Isolation | 
| D. | Time stamping | 
| Answer» D. Time stamping | |