One of those drinks with the flowers and the umbrellas

In which of these situations would you be most likely to use a network proxy?

A) You want to provide automatic IP addressing to your local networks

B) You want to deploy applications automatically to your end users

C) You want to backup data from user workstations

D) You want to block known malicious web sites from your end users

E) You want to replace yourself with a clone while you sneak away to Bora Bora