EMC Exam Questions

How do you repair this condition?

When accessing the utility node using a bash shell (putty) session as admin, you receive a message referencing a possible Man-In-The-Middle attack stating:
“REMOTE HOST IDENTIFICATION HAS CHANGED!”
How do you repair this condition?

A.
Remove the IP address in question from /home/admin/.ssh/known_hosts

B.
Remove the IP address in question from /root/.ssh/known_hosts

C.
Remove “admin” from /etc/passwd on the utility node

D.
Remove “admin_key” key from /home/admin/.ssh