Explanation:

Only statements 1&3 are correct.

• The Antarctic Circumpolar Current (ACC) is the largest wind-driven current on Earth.

• It is the only current that goes all the way around our planet and connects the Atlantic, Pacific, and Indian Oceans.

• It is driven by strong westerly winds and creates some of the roughest seas in the world.

• ACC is the only current in the global ocean to close upon itself in a circumpolar loop.

• ACC is the primary means of inter-basin exchange of heat, carbon dioxide, chemicals, biology and other tracers.

Hence option 3rd is correct.