What ocean is on the east coast of the United States?

The Atlantic Ocean is indeed the ocean located on the east coast of the United States. Stretching from the northeastern state of Maine down to Florida in the southeast, it serves as a significant geographic feature that shapes the climate, economy, and trade of the eastern U.S. The Atlantic Ocean plays a crucial role in international shipping routes and fishing industries, as well as providing recreational opportunities and natural resources.

The other options refer to bodies of water located elsewhere; for instance, the Pacific Ocean lies on the west coast of the United States, separating it from the Asian continent. The Indian Ocean, positioned to the south of Asia and east of Africa, has no direct connection to the United States' geography. The Baltic Sea, situated in northern Europe, is also far removed from the U.S. coast. Thus, the Atlantic Ocean distinctly serves as the eastern maritime boundary for the United States.