Refer to the exhibit.

Router edge-1 is unable to establish OSPF neighbor adjacency with router ISP-1. Which two configuration changes can you make on edge-1 to allow the two routers to establish adjacency?

A.	Set the subnet mask on edge-1 to 255.255.255.252.
B.	Reduce the MTU on edge-1 to 1514.
C.	Set the OSPF cost on edge-1 to 1522.
D.	Reduce the MTU on edge-1 to 1500.
E.	Configure the ip ospf mtu-ignore command on the edge-1 Gi0/0 interface.