Answer:
Option C, a watershed
Explanation:
A catchment area also known as water shed is a parcel of land where all streams combine to form one single stream. These numerous stream combine into one single stream in order to drain into a common/single drainage point i.e either a sea or ocean. It is also known as a drainage basin. Along with river streams, water from from all different precipitation mode with in a region also drain into the single stream in a watershed
Hence, option c is correct.
