Which of the following best describes the process of vapour compression refrigeration?

• A. Warm air → compressor → condenser → expansion valve → evaporator → colder air
• B. Evaporator → compressor → condenser → expansion valve → evaporator → colder air
• C. Warm air → compressor → expansion valve → evaporator → colder air
• D. Warm air → evaporator → compressor → condenser → expansion valve → evaporator → colder air