A three-dimensional drawing that depicts the plumbing system is called a __ A. structural plumbing drawing B. plumbing isometric drawing C. 3-D plumbing drawing D. plumbing plan

The correct answer is B. plumbing isometric drawing.A plumbing isometric drawing is a three-dimensional representation of a plumbing system. It provides a visual representation of the plumbing components and their spatial relationships within a building or structure. This type of drawing is commonly used in construction and engineering projects to help designers, engineers, and contractors understand the layout and functionality of the plumbing system.Option A, "structural plumbing drawing," is not a commonly used term in the industry. Option C, " plumbing drawing," is a general term that could refer to any three-dimensional representation of a plumbing system, but it does not specifically indicate the isometric perspective. Option D, "plumbing plan," typically refers to a two-dimensional plan view of the plumbing system rather than a three-dimensional representation.Therefore, the correct answer is B. plumbing isometric drawing.