How does the transaction propagation setting impact the behavior of transactions?
None of these answers is correct.
It enforces that a logical transaction scope is created for each method that determines rollback-only status, with an outer transaction scope being logically independent from the inner transaction scope.
It ensures that transactions that are commited to the database are propagated to all the shards of a clustered database system.
It guarantees that transactions that are submitted to the database cluster are propagated to all the nodes of a clustered database cloud.