Hello!
As you know, the Ring of Fire is a string of active and dormant volanic sites and seismic activity stretching from the Americas to Asia and down to Australia in the Pacific Ocean. This area has around 450 volcanoes (if not more) and is full of many trenches, which are deep and narrow excavations.
In this case the most likely cause of volanic activity in the area is best said to be b. The movemenet of mantle rock through the cracks between tectonic plates
These movements are also the same reason that explains the earthquakes that primarily occur in this region.
Hope this helps and if you need anymore clarifaction feel free to ask.
Answer:
Official state minerals and rock symbols - marble, quartz, gold, silver, copper, agate, granite, and many more geological symbols
C. The oceanic plate will go under the continental plate
The following officials would be forming a part of democracy: a cabinet member, a president (such as the president of Israel), and a member of a parliament.
An official that is not part of a democracy would be a king, such as the king of Jordan or the king of Saudi Arabia