If an HVAC control panel is equipped with a recirculation feature it means that:
A. When activated the recirculation door is closed preventing dust and contaminants from entering the cab.
B. Cooling time when air conditioning is selected will be lower.
C. The recirculation feature will not operate in the defrost mode.
D. All of the above statements are true in regards to the recirculation feature.
Answer: D
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