Answer:
A.) Continental divides
Explanation:
The Rocky Mountain crest that divides the major east- and west- flowing river systems of North America referred to Continental Divide and this is the most famous Continental Divide of the Americas. it is also called the "Great Divide" .
It runs from Alaska, through western Canada along the crest of the Rocky Mountains to New Mexico. From there, it follows the crest of Mexico’s Sierra Madre Occidental and extends to the tip of South America.
However, this Continental Divides brings about the separation of the between watersheds twhich runs into the Pacific Ocean and one that runs into Atlantic Ocean.
