Zinc and petroleum would be the best aswer.
I believe that it is D. equinox.
The area is known as Subduction zone.This process in which one plate sinks into asthenosphere underneath another plate is known as Subduction.
Explanation: A rhumb line crosses all lines of Longitude at on the same angle. If you pick a spot anywhere above the Equator, and draw a line that meets all crosses all lines of Longitude at 89 degrees or less, your line will spiral up the globe all the way to the North Pole.