Which statement is true about the strict RPF check?

An administrator has configured a strict RPF check on FortiGate.

Which statement is true about the strict RPF check?
A . The strict RPF check is run on the first sent and reply packet of any new session.
B . Strict RPF checks the best route back to the source using the incoming interface.
C . Strict RPF checks only for the existence of at cast one active route back to the source using the incoming interface.
D . Strict RPF allows packets back to sources with all active routes.

Answer: B

Explanation:

Reference: https://kb.fortinet.com/kb/documentLink.do?externalID=FD33955