A large enterprise requires sensitive information be transmitted over a public infrastructure. It requires confidentiality integrity, and authenticity. Which security solution best meets these requirements?

A.
Cisco IOS Firewall

B.
Intrusion Prevention

C.
IPSEC

D.
AAA

E.
Traffic Guard Protector

F.
SECURE CONECTIVITY

Explanation:
IPSec provides CIA (Confidentiality, Integrity & Authencity) Link: http://nl.wikipedia.org/wiki/IPsec