The correct answer is C, Divides the flow of river systems in the United States into east and west.
Step-by-step explanation
The continental divide is the name of the main hydrological divide in America. The divide is a mountain range that divides the eastern and western slopes. Those that are considered eastern run until they reach the Arctic and Atlantic oceans, while those that are considered western run until they reach the Pacific ocean. In the case of North America, it begins in Alaska, goes through the north of Alaska to Canada where it goes south. It continues through the western region of Canada towards the south until it reaches the United States where it crosses the states of Colorado, Montana, New Mexico, and Wyoming. Later, it reaches the Mexican territory, where it takes a central road through the middle of the country until it reaches the southern countries of Mexico, such as Guatemala, Honduras, Nicaragua, and Costa Rica. According to the above, the correct answer is C. divides the flow of river systems in the United States into east and west