An LDAP user cannot authenticate against a FortiGate device. Examine the real time debug output shown in the exhibit when the user attempted the authentication;
then answer the question below.
Based on the output in the exhibit, what can cause this authentication problem?

A.
User student is not found in the LDAP server.

B.
User student is using a wrong password.

C.
The FortiGate has been configured with the wrong password for the LDAP administrator.

D.
The FortiGate has been configured with the wrong authentication schema.