What is wrong with the configuration?

Refer to the Cisco IOS-XR configuration exhibit.

The Cisco IOS-XR router is unable to establish any PIM neighbor relationships.

What is wrong with the configuration?
A . The configuration is missing:
interface gi0/0/0/0
ip pim sparse-mode
interface gi0/0/0/1
ip pim sparse-mode
interface loopback0
ip pim sparse-mode
B . The configuration is missing:
multicast-routing
address-family ipv4
interface gi0/0/0/0
enable
interface gi0/0/0/1
enable
C . The auto-rp scoping configurations should be set to 1 not 16
D . The RP address has not been configured using the rp-address router PIM configuration command
E . PIM defaults to dense mode operations only, so PIM sparse mode must be enabled using the pim sparse-mode router PIM configuration command

View Answer

Answer: B