The answer is B. photic zone
It’s also known as a destructive plate boundary.
The oceanic crust subducts, melts and rises to form volcanoes. The plates may get ‘stuck’ at one point, oceanic crust is still trying to subduct, pressure builds up, plates get ‘unstuck’ triggering huge esrthquakes.
In order from largest to smallest
1. (The Largest) Pacific
2. Atlantic
3. Indian
4. Southern
5. (The Smallest) Arctic
Htin Kyaw is Birmania governor
England I believe. A British Lord worked as intermediate between Argentina and Brazil to fix the dispute over the territory where now Uruguay is.