Explanation:

- Southern Ocean:

- Also known as the Antarctic Ocean.

- Recognized by the US Board on Geographic Names.

- It's the fourth-largest ocean.

- ?? Correct Answer: Southern Ocean

- Indian Ocean:

- Third-largest ocean.

- Lies between Africa, Asia, Australia, and the Southern Ocean.

- Arctic Ocean:

- Smallest and shallowest ocean.

- Located around the North Pole.

- Atlantic Ocean:

- Second-largest ocean.

- Lies between Americas, Europe, and Africa.