A router cannot forward packets to supernets. What are two causes of this problem? (Choose
two.)

A.
The router is configured with Classless IP routing.

B.
The router is configured with Classfull IP routing.

C.
IP Classless command is not configured on the router.

D.
Only static routing is configured.

E.
Variable Length Subnet Mask is not used in choosing the IP addresses.