What is the deepest known part of the world's oceans and deepest location on the surface of the Earth's crust?

Question

AThe Kate Gully

BThe Josephine Ditch

CThe Mariana Trench

DThe Emma Furrow

Select from the options above.

Correct Option: 3  

Explanation:
The Mariana Trench is in the western Pacific Ocean, to the east of the Mariana Islands. It is about 2,550 kilometres (1,580 mi) long and has a mean width of 69 kilometres (43 miles). It reaches a maximum depth of about 11,034 metres (36,200 ft) at the Challenger Deep, a small slot-shaped valley in its floor, at the southern end.