Concept:Cooling and solidification of magma beneath the Earth’s surface forms intrusive igneous features.
Explanation:Magma that cools and hardens inside the crust creates underground structures like laccoliths, sills, dykes, and batholiths.
A laccolith is a dome-shaped intrusive mass formed when magma pushes up overlying rock layers and solidifies.
The other options are extrusive volcanic landforms built by lava cooling at the surface.
A cinder cone and a composite cone are volcanic cones, while a lava plateau forms from surface lava flows.
Therefore, the feature formed by the cooling of magma within the crust is a laccolith.
Answer:C. Laccolith