Examine the command: sqlplus /nolog
In which scenario would this command execute successfully?
A. only from the server, if the database instance is not up
B. from either a client or server, even if the database instance is not up
C. from either a client or server, only if the database instance is up, and the command connects the session to the instance
D. from either a client or server, only if the database instance is up, but the command does not connect the session to the instance