Which meridian forms the boundary line between the Indian Ocean and th

Which meridian forms the boundary line between the Indian Ocean and the Pacific Ocean ?

The meridian of Cape of Tasmania
The meridian of Cape Town
The meridian of Wellington
The meridian of Perth
This question was previously asked in
UPSC CAPF – 2014
The meridian of Cape of Tasmania (approximately 147°E) is used as part of the boundary definition between the Indian Ocean and the Pacific Ocean.
The International Hydrographic Organization (IHO) defines the boundaries of oceans and seas. According to the IHO definition (specifically S-23, Limits of Oceans and Seas, 3rd Edition, 1953), the meridian of 146°55′ E running south from the southern extremity of Tasmania forms part of the boundary between the Indian Ocean and the Pacific Ocean (separating the Great Australian Bight from the Tasman Sea). Cape of Tasmania is the southern point of Tasmania.
Cape Town is located near the boundary between the Atlantic Ocean and the Indian Ocean. Wellington is in New Zealand, well within the Pacific Ocean. Perth is on the west coast of Australia, situated on the Indian Ocean coast. The boundaries of oceans can be complex and are defined by various international bodies or conventions, often following geographical features or lines of longitude/latitude.