PLease get to me soon. 11. At what type of plate boundary would you expect to find a deep trench in the ocean,parallel to a coastline and a volcanic mountain chain?A Ocean-continent convergent (subduction zone)B Ocean-ocean convergent (subduction zone)C Ocean-ocean divergent (spreading center)D Transform margin

Earth is the third planet in the solar system. It has a rocky surface primarily made up of silicate rocks and metals. That is why it is called a terrestrial planet.The lithosphere is the outermost layer of Earth, which is consists of the crust and the upper layer of the upper mantle. The lithosphere is broken into multiple broken slabs, called plates. The plates lie on the ductile asthenosphere, which is semi-solid, hence can move slowly due to the internal heat of Earth. This causes the motion of plates, called plate tectonics.The interaction between plates can give rise to 3 types of plate boundaries. At a convergent plate boundary, two plates converge, hence the denser/heavier plate subducts under the lighter plate. At the divergent plate boundary, two plates move away from each other. And at a transform plate boundary, two plates move past each other.The convergent plate boundaries, where a denser plate is subsiding under a lighter plate are called the subduction zone. The temperature at subduction is cooler. The availability of water released from the subducted plate due to the internal heat of the earth leads to the reduction of melting of points of rocks. This leads to the formation of magma, which comes out through the fissures on the continental plate surface. The tensional force between the plates is there that results in the formation of the block-faulted mountain and abyssal hills, which trend parallel to the oceanic ridges. Therefore, the correct answer is option A.