Questions in thermodynamics

Q1- Why is the reversed Carnot cycle executed within the saturation dome not a realistic model for refrigeration cycles?

A- The two isothermal heat transfer processes are not achievable.

B- the isentropic compression and expansion of a two-phase mixture are difficult to achieve.

C- the isentropic compression and expansion of the two-phase mixture are achievable under the isothermal process

D- both compression and expansion processes are the same but the heat transfer processes are not achievable

* Only tell the answer If it is A OR B ' *