What body of water do the Mississippi River and the Rio Grande flow into?

a. Pacific Ocean

b. Atlantic Ocean

c. Gulf of Mexico

d. Lake Superior

The answer is C - Gulf of Mexico

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.