Which of the following statements are correct?

View the exhibit.

Which of the following statements are correct? (Choose two.)
A . This setup requires at least two firewall policies with the action set to IPsec.
B . Dead peer detection must be disabled to support this type of IPsec setup.
C . The TunnelB route is the primary route for reaching the remote site. The TunnelA route is used only if the TunnelB VPN is down.
D . This is a redundant IPsec setup.

Answer: C D