No static routing has been configured. For iBGP loopback-based peering, which statement is correct?

Refer to the exhibit.

No static routing has been configured. For iBGP loopback-based peering, which statement is correct?
A . It is not necessary for the routing table on S1 to have an entry for the loopback network of S3.
B . S1 should have the Loopback network of S3 in its routing table for loopback-based peering.
C . For iBGP peering, physical interface addresses must be used.
D . A static route on S1 to 144.254.32.1/32 will eliminate the need for loopback-based peering with S3.

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Answer: B