Which three statements about Classless Interdomain Routing (CIDR) are true? (Choose three.)

A.
CIDR is also referred to as "supernetting."

B.
CIDR uses netmasks to create network prefixes.

C.
CIDR can only be applied to Class C network addresses.

D.
CIDR applies to address spaces inside an organization only.

E.
CIDR involves combining two or more contiguous address ranges.