Select the correct option to test your answer: A isentropic heat drop to useful heat drop B adiabatic heat drop to isentropic heat drop C cumulative actual enthalpy drop for the stages to total is isentropic enthalpy heat drop D none of the above Correct Answer: Option C (cumulative actual enthalpy drop for the stages to total is isentropic enthalpy heat drop) Verified correct option for Electrical Engineering (Power Plant Engineering In Ee).