Researchers found a total of 138 volcanoes in the West Antarctic Ice Sheet overlying the West Antarctic Rift System, 91 of which had never before been identified. Basically they have never seen those types of volcanoes before.
Your best probable answer would be B. because tectonic plates are pretty much the reason why Central America has over a dozen mountains.
C cause our oceans and lake and river are huge so yeah
D. islands used for agricultural
