Given:
11. @PersistenceContext EntityManager em;
12. public boolean test(Order o) {
13. boolean b = false;
14. o = em.merge(o); 15 em.remove(o);
16. o = em.merge(o);
17. b = em.contains(o);
18. return b;
19.}
Which statement is correct?
A.
The method will return TRUE.
B.
Themethod will return FALSE.
C.
Themethodwill throw an exception.
D.
TheOrder instance willberemoved from the database.
Explanation: