Concept:Intrusive volcanic features form when magma solidifies beneath the Earth's surface.Explanation:Dykes, sills, and laccoliths are all formed by magma that cools and hardens inside the crust.They are therefore classified as intrusive volcanic features.A lava plateau, however, is produced when lava flows out onto the Earth's surface and spreads over a wide area.Since it forms from extrusive volcanic activity, it is not an intrusive feature.Answer:D. lava plateaux