Answer:
Option (C)
Explanation:
Earth's crust is composed of numerous small and large plates. These plates are divided into two types namely, the continental crust (Continental plate) and the oceanic crust (oceanic plate). These plates move over the asthenosphere layer from one place top other due to the convection current that generates at the mantle. This plate motion takes place in three different ways-
1) Convergent plate motion
2) Divergent plate motion
3) Transform plate motion
The divergent motion of plates leads to the formation of new ocean floors along the mid-oceanic ridge because of the seafloor spreading. As this spreading takes place it allows the magma to rise up and comes out to the surface and deposits at the mid-oceanic ridge forming new crusts.
Hence, the correct answer is option (C).
