In Frame Relay, the Discard Eligible bit works in conjunction with which of these mechanisms as
part of congestion control?

A.
Type of service (TOS) settings
B.
Class of service (COS) settings
C.
Frame Relay traffic shaping (FRTS) settings
D.
Forward explicit congestion notification (FECN) settings
E.
Differentiated services code point (DSCP) Settings
Explanation: