A Carnot cycle consists of the following steps:
(A) Two isothermal and two isentropic
(B) Two isobaric and two isothermal
(C) Two isochoric and two isobaric
(D) Two isothermals and two isochoric
(A) Two isothermal and two isentropic
(B) Two isobaric and two isothermal
(C) Two isochoric and two isobaric
(D) Two isothermals and two isochoric