Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to become an airfield operations specialist [title] Conduct some research on the field of airfield operations. [step] Take into consideration whether you are interested in working for a public, commercial airport or a position at a military airfield. A government job may require an extensive background check and a security clearance.

Ending1: [title] Enroll in an engineering program at a local college. [step] Find out if you want to pursue an engineering degree in either field. Ending2: [title] Evaluate your knowledge and skills to ascertain your strengths and weaknesses. [step] Working as an airfield operations specialist requires strong reasoning and critical thinking skills to quickly identify and solve problems. Ending3: Although government jobs vary depending on the type of position you are seeking, you will usually need a pilot general's license. [substeps] Observe the aviation industry, this will help you get a better idea of whether you would be a good choice in the field. Ending4: [title] Determine if you will be working with civilian pilots or under an airline. [step] Working as a civilian pilot leaves you with a responsibility to prove that the pilot flying the aircraft respects you and the people in the aircraft.

Answer format: ending1/ending2/ending3/ending4