A tributary is a river that

Ahas a bank of less than 22 feet.
Bis located in California.
Cflows into another river or stream.
Dis in the southeastern United States

Verified Answer :

the answer I C- Flows into another river or stream

the answer is c because none of the other answers make sense and also

tributary's can flow into big body's of water wherever they are. If it is a river and flows into the ocean it would be considered as a tributary because no other bodies of water do that unless its connected