A 2 m diameter sluiceway at RL 300 m is provided through a concrete overflow dam section to release water to the downstream where tail water level is not more than 275 m. The discharge through this outlet when the water level in the reservoir is at FRL of 330 m is of the order of_________________

• A. 20 cumecs
• B. 40 cumecs
• C. 50 cumecs
• D. 80 cumecs