You are not sure if you have received an Ethernet frame from a workstation you are trying to reach by Telnet, which is on the same logical network. You may have a cabling fault.

Which command should you use to verify that you have recently received the MAC addresses of the workstation?

A.
arp -a

B.
arp -n

C.
arp -d

D.
arp -f

E.
arp -k