An inward flow reaction turbine has an external diameter of 1 m and its breadth at inlet is 250 mm. If the velocity of flow at inlet is 2 m/s and 10% of the area of flow is blocked by blade thickness, the weight of water passing through the turbine will be nearly

• A. 10 kN/s
• B. 14 kN/s
• C. 18 kN/s
• D. 22 kN/s