I wish i can help you, but where is the passage?\
Yeah it's B. The Pentagon papers were leaked and showed that the US was involved with the Vietnam war far longer than the public thought.
Answer:
A continental divide is a boundary that separates a continent's river systems. Each river system feeds into a distinct ocean, bay, or sea. A continental divide is a naturally occurring boundary or ridge separating a continent's river systems this helps a lot with with each river system.
