The unit discharge through the turbine is

• A. <img src="/_files/images/mechanical-engineering/hydraulic-machines/197-75-1.png">
• B. <img src="/_files/images/mechanical-engineering/hydraulic-machines/197-75-2.png">
• C. <img src="/_files/images/mechanical-engineering/hydraulic-machines/197-75-3.png">
• D. <img src="/_files/images/mechanical-engineering/hydraulic-machines/197-75-4.png">