Answer: I would say D. (or 4.)
Explanation: Because you start to get warm and sweaty at around 1 hour of exercise. And it reduces the risk of chronic diseases.
(Information found from https://www.cdc.gov physicalactivity, walking)
The answer is B) volcanic arc, island arc.
The first one would be island arc as subduction occurs beneath the continental crust. When it occurs, the compressional force placed upon the continential plate will cause the rock to bend and arc up form a series of volcanoes leading to the formation of volcanic arc.
The second one would be island arc as subduction occurs beneath the oceanic lithosphere. When subduction forced the crust to bend, rocks are compressed and arc up, forming a series of island, the formation of island arc then occurs.
C and D is incorrect as no transformation has take place.
Hope it helps!
