Concept:This question involves landforms created when magma cools and hardens beneath the surface of the earth.
Explanation:Sills are formed when magma is forced between horizontal layers of rock.
Dykes develop when magma cuts across vertical cracks or rock layers.
Batholiths are very large masses of magma that cool slowly deep within the earth’s crust.
In all these cases, the molten rock does not reach the surface as lava; instead, it intrudes into pre-existing rocks.
Because they are created underground by the cooling of magma, they are classified as intrusive volcanic landforms rather than extrusive ones.
Answer:A. intrusive volcanic landforms