Final answer:
A Corbel Vault (option C) is created using a method where successive courses of stone are offset without the use of traditional arch construction, often aided by a relieving triangle to support heavy structures.
Step-by-step explanation:
The type of vault constructed by corbelling courses of stone masonry, resulting in a stepped surface that can be smoothed or curved without incurring arch action, is known as a Corbel Vault. This technique involves offsetting successive courses of stone or brick at the springline of the walls to project towards the center of an archway from each supporting side, eventually meeting at the apex.
The corbel arch is constructed without the traditional techniques used in the construction of rounded or pointed arches and does not rely on the same principles as the groin vault, barrel vault, or ribbed vault. Instead, it uses the corbeling method to create supporting structures, often coupled with a relieving triangle to redistribute weight, which was a common practice in Mycenaean architecture.