A LEED AP is calculating water use for a new construction project.

The total water use is calculated by adding the consumption associated with every listed fixture and appliance. The calculation is 600 gal. for toilets, plus 300 gal. for urinals, plus 100 gal. for the kitchen faucet, plus 200 gal. for the commercial dishwasher, plus 200 gal. for lavatory faucets. This produces 1,400 gal. The corresponding metric total is approximately 5,299.6 litres. Although LEED water-efficiency documentation normally distinguishes fixture water, appliance water, process water, baseline use, and proposed use, the question asks only for the combined consumption of the listed components. Therefore, no percentage reduction or baseline comparison is required, and Option A is the correct mathematical total.