Which one of the following statements is not correct about the Indian Ocean?

Correct option is D

Indian Ocean:

• The Indian Ocean is the third-largest ocean, covering about 20% of the Earth's water surface.
• The Indian Ocean borders Asia, Africa, and Australia.
• The northern boundary of the Indian Ocean reaches the southern end of the Persian Gulf.
• The Indian Ocean is not delineated by the 20° meridian; rather, the Atlantic Ocean and Indian Ocean are generally separated by the 20° East longitude (off the coast of Africa). The 20° meridian in question here is inaccurate with respect to marking the boundary with the Atlantic Ocean, making this the incorrect statement.