Based on the following Cisco Catalyst 2950 Series switch configurations, which additional command will enable these actions?

Traffic marked with a CoS of 6 or 7 will be serviced by the priority queue.
Traffic marked with a CoS of 0, 1, or 2 will have a 20-percent weight when serviced by the wrr queue.
Traffic marked with a CoS of 4 will have a 30-percent weight when serviced by the wrr queue.
Traffic marked with a CoS of 3 or 5 will have a 50-percent weight when serviced by the wrr queue.

Catalyst 2950 partial configuration:

no wrr-queue cos-map
wrr-queue cos-map 1 0 1 2
wrr-queue cos-map 2 4
wrr-queue cos-map 3 3 5
wrr-queue cos-map 4 6 7

A.
wrr-queue bandwidth 1 10 15 25

B.
wrr-queue bandwidth 1 20 30 50

C.
wrr-queue bandwidth 15 25 10 1

D.
wrr-queue bandwidth 10 15 25 0

E.
wrr-queue bandwidth 15 25 10 0

Explanation:

To allocate bandwidth between standard transmit queue 1 (low priority) and standard transmit queue 2 (high priority), use the wrr-queue bandwidth command. Use the no form of this command to return to the default settings.

wrr-queue bandwidth weight-1 weight-2 [ weight-3 ]
no wrr-queue bandwidth