What is the primary difference between AES-CCMP and TKIP?

A.
With AES-CCMP, each station generates its PMK as part of the 802.1X authentication process.

B.
With TKIP, the station uses the same key to secure data and the MIC.

C.
AES-CCMP uses a 254-bit key stream, while TKIP uses a 128-bit key stream.

D.
AES-CCMP uses a stronger encryption algorithm than that provided by TKIP.