Answer: B
Step-by-step explanation:
The Indian Ocean is the third largest Ocean in the world and of the 4 oceans is the warmest. This means that it is not very adept at supporting life like the other four. It is said to be named the Indian Ocean as most see traffic on it in historic times were of merchants going or coming from India.
The Indian ocean borders 4 continents being Africa, Asia, Australia and Antarctica. For the purpose of this question, the Indian Ocean borders Australia to the West and the landmass depicted in the picture is Australia. This is why B is the correct answer as it shows an ocean to the west of Australia.
I have attached the map missing from the question below.