Monica Will Be Vacationing in Spain for Two Weeks and Wants

Monica will be vacationing in Spain for two weeks and wants to set up her e-mail with an "out of the office" message. Her boss also asked her to look into setting up her e-mail to automatically forward messages to a co-worker. Please answer the two questions below.
-In order to set up the automatic "out of the office" response, Monica will need a ____.

A) special e-mail server
B) special e-mail client
C) both a. and b.
D) neither a. nor b.