In Carnot cycle which of the following processes are involved?

In Carnot cycle which of the following processes are involved?

a. Reversible Isothermal and Reversible Adiabatic
b. Reversible Isothermal and Reversible Polytropic
c. Reversible Isothermal and Reversible Isobaric
d. Reversible Isothermal and Reversible Isochoric

Correct Answer : a. Reversible Isothermal and Reversible Adiabatic