Refer to the exhibit.
What does the error message relay to the administrator who is trying to configure a Cisco IOS device?
A . A NETCONF request was made for a data model that does not exist.
B . The device received a valid NETCONF request and serviced it without error.
C . A NETCONF message with valid content based on the YANG data models was made, but the request failed.
D . The NETCONF running datastore is currently locked.