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

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