Mississippi River flows into the Gulf of Mexico - so that's how I know that the correct answer is c!
There is also a Rio Grande that flows into the same Gulf, but there are actually many rivers of this name, as it just means "Big River" in Spanish.
False.
Race is biological while ethnicity is cultural
The people of the Northwest coast were hunter-gatherers, so they relied on hunting, fishing, and gathering edible plants as their main sources of food.