(Choose 1 answer)
A database transaction, by definition, must be ACID (atomic, consistent, isolated and durable). What does "Isolated" mean?
A. "Isolated" means that: Transactions provide an "all-or-nothing" proposition, stating that each work-unit performed in a database must either complete in its entirety or have no effect whatsoever
B. "Isolated" means that: Transactions must not violate any integrity constraints during its execution
C. "Isolated" means that: Transactions that have committed will survive permanently
D. "Isolated" means that: how/when the changes made by one operation in one transaction become visible to other concurrent operations in other transactions
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E35
