Refer to the exhibit. An engineer must restrict some subnets to have access to the WLC. When the CPU ACL function is enabled, no ACLs in the drop-down list are ...

Refer to the exhibit.
An engineer must restrict some subnets to have access to the WLC. When the CPU ACL function is enabled, no ACLs in the drop-down list are seen. What is the cause of the problem?

A. The ACL does not have a rule that is specified to the Management interface. B. No ACLs have been created under the Access Control List tab. C. When the ACL is created, it must be specified that it is a CPU ACL. D. This configuration must be performed through the CLI and not though the web GUI.