Plumbing is
A. piping used for the installation, alteration, repair, or removal of automatic sprinkler systems installed for fire protection only.
B. piping used for the incorporation of liquids or gases for any product or process in the manufacturing industry.
C. the practice, materials, and fixtures within or adjacent to any building structure or conveyance, used in the installation, maintenance, extension, alteration, and removal of any piping, plumbing fixtures, plumbing appliances, and plumbing appurtenances.
D. the initial connection to a potable water supply upstream of any required backflow prevention devices and the final connection that discharges indirectly into a public or private disposal system.
Answer: C
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