What is a reason for this error?

Refer to the exhibit.

The storage administrator for the company exampie.com is attempting to join an SVM to their Active Directory as svmi. The computer account must also be joined to the secure organizational unit. Attempts to perform this action using the CLI fail with the error message shown in the exhibit.

What is a reason for this error?
A . The requested OU Secure does not exist in the Active Directory and must be created by the Active Directory administrator.
B . The requested OU Secure has the incorrect principal and errored with KRB5KDC_ERR_S_PRINCIPAL_UNKNOW
D . The administrator account password used in vserver cifs create was not entered correctly.
E . The syntax is incorrect; it should be vserver cifs create -cifs-server svml -domain example.com -ou ou=Secure,dc=example,dc=com.

Answer: A