Answer:
B - they all drain water to the lowest point.
Step-by-step explanation:
All watersheds are made up of a network of interconnected rivers and streams that drain into a common body of water, such as a lake or ocean. The Mississippi River Basin is a vast watershed that covers a large portion of the United States, and it is characterized by the fact that all the water within the basin flows towards the Gulf of Mexico, which is the lowest point in the region. Similarly, all watersheds are defined by the fact that they drain water to the lowest point in the area, which can be a river, lake, or ocean.