What is the primary function of the inside router in the SAFE SMR midsize network design corporate Internet module?

A.
Detect attacks on ports that the firewall is configured to permit.

B.
Provide connection state enforcement and detailed filtering for session initiated through the firewall.

C.
Provide connectivity to the LAN Module.

D.
Provide Layer 3 separation

Explanation:
The primary function of the inside router is to provide Layer 3 separation and routing between the corporate Internet module and the campus module.
REF;Safe white papers;page 20
SAFE: Extending the Security Blueprint to Small, Midsize, and Remote-User Networks