(Choose 1 answer)
A database transaction, by definition, must be ACID (atomic, consistent, isolated and durable). What does "Consistent" mean?
A. "Consistent" 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. "Consistent" means that: Transactions must not violate any integrity constraints during its execution
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