Answer:
Shut off the heater, open all air vents, Schedule regular maintenance, Keep fireplaces clean and well vented and medical attention.
Explanation:
Shut off the heater, open all air vents, Schedule regular maintenance, Keep fireplaces clean and well vented and medical attention should be used by the pilot who suspects carbonmonoxide condition in an aircraft in order to mitigate carbon monoxide poisoning in an aircraft. These ways and methods are used to prevent carbon monoxide poisoning in an aircraft.
The answer choice is three
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