What four large bodies of water border the united states?

The large bodies of water border the united states are: 
Atlantic Ocean, Gulf of Mexico, Pacific Ocean, Bering Sea and Arctic Ocean.
United states have land border with two countries, Canada and Mexico.
The United States of America has more than 12,000 miles of coastline which borders three major bodies of water that are, the Pacific Ocean, the Atlantic Ocean and the Gulf of Mexico. 

Themes; subfields is the answer

Ihave no idea. about. that