Answer:
B. Tectonic Plates
Explanation:
The movement of the earth’s lithosphere, that is, its crust and the upper part of its mantle, causes earthquakes. The lithosphere of the Earth consists of numerous huge and small tectonic plates. Although they are always in motion these can get caught at their boundaries through friction. Whenever stress at the edge exceeds frictional forces, an earthquake releases energy as seismic waves shake the ground. This shift may occur because plates slide past each other or collide or separate from one another.
