According to the LEED v4: Building Design + Construction Guide, the Water Efficiency Prerequisite,

Indoor Water Use Reduction requires the project to reduce the aggregate water consumption from

plumbing fixtures and fittings by at least 20% from the baseline. The baseline water consumption is

determined by the Energy Policy Act of 1992 and subsequent rulings by the Department of Energy, or

a local equivalent for projects outside the U.S. The plumbing fixtures and fittings that apply to the

calculations are toilets, urinals, lavatory faucets (both private and public), showerheads, and kitchen

sink faucets1. Pre-rinse spray valves, dishwashers, and commercial kitchen filling operations faucets

are not included in the calculations, as they are considered process water uses1. Therefore, the

correct answer is C, urinals, public lavatory faucets, kitchen sink faucets. Reference: LEED v4: Building

Design + Construction Guide, Water Efficiency Prerequisite, Indoor Water Use Reduction,

Requirements1