To increase the security of the network authentication process, an administrator decides to implement three factor authentication. Which of the following authentication combinations is a three-factor system?

A.
A PKI enabled smart card, strong password and 12-digit PIN

B.
A retina scanner, PKI enabled smart card and a six-digit PIN

C.
A fingerprint scanner, PKI enabled smart card and badge proximity reader

D.
An Iris scanner, a user generated pass phrase and a palm reader