【单选题】You issue these LSNRCTL commands: LSNRCTL> SET CURRENT_LISTENER listener01 LSNRCTL> START listener02 What is the result of issuing these commands?()
A.
A listener named LISTENER is started.
B.
A listener named LISTENER01 is started.
C.
A listener named LISTENER02 is started.
D.
The START command fails and no listener is started.