Mariana trench is located in which ocean?

Correct option is B

The Mariana Trench is located in the Pacific Ocean. It is the deepest part of the world's oceans and is located to the east of the Mariana Islands near Japan. The trench is approximately 2,550 kilometers (1,580 miles) long and has a maximum depth of approximately 11 kilometers (7 miles) at the Challenger Deep.