The correct option is (c).
Explanation
The Indian Ocean is the third-largest of the world's oceanic divisions, covering approximately 70,560,000 km². Its physical geography and boundaries are defined by the surrounding continental landmasses of Asia, Africa, and Australia.
Statement-wise Analysis:
- Statement 1 is Incorrect. The Indian Ocean is not circular in shape. Unlike the Pacific Ocean, which is roughly circular, or the Atlantic Ocean, which is 'S' shaped, the Indian Ocean is roughly triangular in shape. It is enclosed by landmasses on three sides.
- Statement 2 is Correct. The Indian Ocean is bounded by the continent of Africa to the west.
- Statement 3 is Correct. The Indian Ocean is bounded by the continent of Australia to the east and by Asia to the north.
Key Takeaway:
The Indian Ocean is characterized by a triangular shape and is bounded by Asia in the north, Africa in the west, and Australia in the east.