Which structure or landform could be a batholith? A. A limestone cavern, such as the popular Mammoth Cave in Kentucky C. A group of mountains, such as the coastal mountains of British Columbia

I think the correct answer from the choices listed above is option C. The structure that could be a batholith would be a group of mountains, such as the coastal mountains of British Columbia. A batholith is a large body of igneous rock formed beneath the Earth's surface by the intrusion and solidification of magma.