which of the following ways should the firewall be configured?

An organization recently installed a firewall on the network. Employees must be able to send and
receive email from a POP3 server. In which of the following ways should the firewall be configured?
(Select TWO).

A.
Allow TCP port 23

B.
Allow TCP port 25

C.
Allow TCP port 110

D.
Allow UDP port 25

E.
Allow UDP port 110