What encryption standards describe WPA and WPA2?

What encryption standards describe WPA and WPA2?

A.
WPA mandates AES with TKIP optional, WPA2 mandates TKIP

B.
WPA mandates TKIP with AES optional, WPA2 mandates AES

C.
WPA mandates CKIP, WPA2 mandates AES

D.
WPA mandates CKIP with AES optimal, WPA2 mandates AES