Which statement about this COS-DSCP mapping is true?

Refer to the exhibit.

Which statement about this COS-DSCP mapping is true?

A.
COS 3 is mapped to the expedited forwarding DSCP.

B.
COS 16 is mapped to DSCP 2.

C.
The default COS is mapped to DSCP 32.

D.
This mapping is the default COS-DSCP mapping on Cisco switches.