The water consumption of a high rise apartment building with 60 dwelling units having an average household size of 5 persons is 135 lpcd. Assuming 80% of the total use is met with recycled water supply, the daily domestic demand for the building is _________ litres.

• A. 6100 to 7100
• B. 5100 to 6100
• C. 8100 to 8100
• D. 2100 to 4100