Answer: Option (A)
Explanation:
Run off occurs when there is a rapid flow of water over an inclined or gently sloping area. The sediments are often carried by the runoff water and are transported to some other place. Surface water Run off also plays an important role in the earth's water cycle, as it carries the water along with sediments to the streams and channels.
Thus, runoff is the actual source for the sediments and other particles to be transported in flowing water.
Hence, the correct answer is option (A).
