Which property of a transactional workload guarantees that each transaction is treated as a single unit that either succeeds completely or tails completely?

Isolation ensures that concurrent transactions appear to execute sequentially, meaning one transaction's intermediate state is not visible to other concurrent transactions.

Atomicity guarantees that a transaction is treated as a single, indivisible unit; all of its operations must either complete successfully or the entire transaction fails and leaves the database unchanged, preventing partial updates.

Consistency ensures that a transaction brings the database from one valid state to another, maintaining all defined rules, constraints, and relationships.

Durability guarantees that once a transaction has been committed, its changes will persist and remain permanent, even in the event of system failures.