In the case of a manual login to Manager, what should you consider regarding the user names and passwords?

In the case of a manual login to Manager, what should you consider regarding the user names and passwords?
A . User names and passwords are always manually created.
B . User names and passwords must have special characters.
C . User names and passwords can come from external identity providers.
D . User names and passwords must be imported via Excel before use.

Answer: C