Your online e-commerce application has a message-driven bean (MDB) that calls an email server.
Which statement about invoking the MDB is true?
A.
The client can access the MDB directly.
B.
The client accesses the MDB using an interface.
C.
A message-driven bean is simply a JMS message provider.
D.
A JMS message is sent to the destination to which the MDB is listening.