At a Hydro-electric power plant site, available head and flow rate are 24.5 m and 10.1m3/s respectively. If the turbine to be installed is required to run at 4.0 revolution per second (rps) with an overall efficiency of 90%, then suitable type of turbine for this site is
(a) Francis (b) Kaplan
(c) Pelton (d) Propeller