In the spfile of a single instance database, LOCAL_LISTENER is set to LISTENER_1. The TNSNAMES.ORA file

A. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration

B. Dynamic service registration cannot be used for this database instance

C. The LREG process registers services dynamically with the LISTENER_1 listener

D. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration

E. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances