Which two items enable WMM to expedite frames from respective traffic categories?

Which two items enable WMM to expedite frames from respective traffic categories? (Choose
two.)
Consistent CWmin and CWmax values
Dynamic CWmin and CWmax values

A.
AIFS

B.
SIFS

C.
PIFS

D.
DIFS

E.
U-APSD

F.
PS-Poll

Explanation: