Which of the Following Statements Are True About the Default

Which of the following statements are true about the default route?

A) In a routing table, the route to 0.0.0.0 (with the mask being 0.0.0.0) is the default route.
B) If the destination address of a packet does not match any entry in the routing table, the packet is forwarded through the default route.
C) The default route can only be manually configured by the administrator.
D) The routing table of any router must contain the default route.