A house located in Delhi has 111 m of flat terrace area (runoff coefficient = 0.85) and 55 m of ground area covered with grass (runoff coefficient = 0.15). If annual average rainfall is 611.8 mm, then rain water harvesting potential (L/year) from runoff will be ______________

• A. 63800 to 64800
• B. 62700 to 62800
• C. 66800 to 63900
• D. 64200 to 64288