The correct answer is A. Cornice.
A cornice is an architectural molding that crowns (or finishes) a wall, a room, a building, or a series of arches, and projects from the face of the wall. It is usually made of stone, brick, wood, or metal, and is often decorated with moldings, carvings, or other ornamentation.
A coping is a protective covering for the top of a wall or other structure, typically made of stone, brick, or concrete. It is designed to prevent water from penetrating the wall and to protect the wall from weathering.
A frieze is a decorative band or molding that runs along the top of a wall, below the cornice. It is often decorated with relief sculptures or other ornamentation.
A lintel is a horizontal structural member that spans an opening, such as a door or window. It is typically made of stone, wood, or metal, and is designed to support the weight of the wall above the opening.