The specific speed for a turbine is the speed of a geometrically similar turbine which would

• A. produce unit power (one kilowatt) under unit head (one meter).
• B. produce unit discharge (1 litre/sec) under unit head (one meter)
• C. produce unit discharge (1 litre/sec) with unit power (one kilowatt)
• D. produce unit head (one meter) with unit power (one kilowatt)