A Java Persistence application uses the EntityManager.flush method to synchronize the current
persistence context with the database. Which two statements are correct? (Choose two.)
A. The flush method might cause the persist operation to be cascaded to related entities.
B. Extensive use of the flush method decreases the performance of a Java Persistence
C. The flush method should be used to synchronize the current persistence context with
modifications made in other transactions.
D. The flush method should be used to publish changes done in the current persistence context
to other transactions before actual transaction commit
What should the answers be ? Should'nt one of them be option D??
Please explain as to why you chose your options...