Almost Immediately After a Server Migration Project,employees Are Complaining That

Multiple Choice

Almost immediately after a server migration project,employees are complaining that they can't reach the Internet.You sit down at a machine and try to ping a well-known website,which fails.You then try to ping a known public IP address,which succeeds.What is most likely the problem?

A) IP Address of each machine is set incorrectly.
B) Subnet mask is wrong.
C) No gateway address is set.
D) DNS settings are incorrect.