Which two components must be addressed when fixing the MSDP peering issue?

Refer to the exhibit.

Router A and Router B are connected via GigabitEthernet interfaces, but they are unable to
form an MSDP neighborship. Which two components must be addressed when fixing the
MSDP peering issue? (Choose two.)

A.
An msdp default peer is configured on both routers.

B.
A BGP process on each router is present so that MSDP can peer and carry updates.

C.
The router interfaces are PIM-enabled to transport MSDP updates.

D.
The connect-source attribute is configured with a host route under the MSDP process.

E.
The MSDP peering on both routers specifies an origin ID so that it can peer.

F.
The router A loopback interface configures the correct subnet mask.