You have configured routing policies on a Cisco IOS XR device with routing policy language. Which two statements about the routing policies are true?

A.	The routing policies affect BGP-related routes only.
B.	If you make edits to an existing routing policy without pasting the full policy into the CLI, the previous policy is overwritten.
C.	You can change an existing routing policy by editing individual statements.
D.	The routing policies are implemented in a sequential manner.
E.	The routing policies are implemented using route maps.