Which of the Following Correctly Describes a Stream's Capacity

Multiple Choice

Which of the following correctly describes a stream's capacity?

A) It varies tremendously from time to time.
B) It is the potential load a stream can transport.
C) It depends mostly on fluctuations in the volume and velocity of flow.
D) It is defined as a volume of sediment passing a given point during a given time.
E) It is correctly described by all of the above.