Question

HELP ME PLEASE PLEASE PLEASE!!!

What best describes a river system?
A. the network that includes all the waters feeding into a main river and all the waters branching out from it
B. the source of a river and all the tributaries feeding into the river
C. the source and mouth of a river
D. all the distributaries flowing away from a river and the mouth of the river​

Answer 1

B the source of a river and all the tributaries feeding into the river

Step-by-step explanation: