Given that a particular crop requires about 20 cm depth of water at an interval of 40 days, and the base period is 400 days. Find the delta for the crop? Now using this delta find the duty of water for the crop?

• A. 150 cm, 1150 hectares/cumec
• B. 180 cm, 1825 hectares/cumec
• C. 200 cm, 1728 hectares/cumec
• D. 195 cm, 1920 hectares/cumec