The answer to this question is a pyramid. A pyramid is a structure that was formed with a triangular base. Pyramids are builtb during the Ancient Egypt as tombs for the pharaoh's. Example of pyramids are the Great pyramid of Cholula, the Red Pyramid, and the great pyramid of Khufu in Egypt.
B. Using a certain object as a main focus and outing things around it can make out brain understand that that is that main point of the building and that that is the center