Security+ Practice Question

lmilkes

Hello,

I'm taking a practice exam and this question is throwing me:

A security administrator must implement a network authentication solution which will ensure encryption of user credentials when users enter their username and
password to authenticate to the network.
Which of the following should the administrator implement?
A. WPA2 over EAP-TTLS
B. WPA-PSK
C. WPA2 with WPS
D. WEP over EAP-PEAP

It says the answer is D. I could see that as a possibility, but why isn't A the better answer?
Thanks!

lmilkes

Never mind. I found it really is A.