What ocean is located on the west coast of the United States?

The correct answer is the Pacific Ocean because it is the ocean that borders the west coast of the United States. The Pacific Ocean is the largest and deepest ocean in the world and stretches from the Arctic Ocean in the north to the Southern Ocean in the south, encompassing significant coastal areas of the United States, particularly states like California, Oregon, and Washington.

The other oceans mentioned are located in different areas of the world: the Indian Ocean is situated to the south of Asia and between Africa, Australia, and India; the Atlantic Ocean lies between North and South America to the west and Europe and Africa to the east; the Arctic Ocean is primarily found around the North Pole. Thus, they do not have coastlines that touch the western United States, making the Pacific Ocean the only correct choice for this question.