Which troubleshooting step should the View administrator take next?

A View administrator attempting to install View Composer receives the error:

The database cannot be found or a connection cannot be established. Check the DSN name to ensure that it is correctly installed.

The View administrator verifies that the DSN name, the username, and the password for the DSN are correct.

Which troubleshooting step should the View administrator take next?

A.
Verify that the ODBC is a file DSN.

B.
Verify that the ODBC is a system DSN.

C.
Verify that the database has the correct permissions.

D.
Verify that the user has the correct permissions.