Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to become an aircraft engine specialist [title] Conduct some initial research on jobs as an aircraft engine specialist to learn more about the work to see if the field is a good match for you. [step] Ask yourself if your goal is to work for a public airport or to get a position on a military base. [title] Evaluate your ability to work with complex machinery and to accurately diagnose and repair mechanical systems.

Ending1: [step] After you gain knowledge and have presented your main goals for the career, begin to consider many obstacles. The potential pitfalls are large and can cost large amounts of time. Ending2: [step] The best resource for determination is a lawyer. [title] Study the parts industry and their chronology. Ending3: [step] Meet with specialist specialists to determine any problems that you may be having. Identify the first priority of obtaining certification as a certified mechanic. Ending4: [step] Aircraft engine specialists must have a strong mechanical aptitude and knowledge of engineering and technology. [title] Browse the internet and explore various programs that provide technical training in preparation for a position as an aircraft engine specialist.

Answer format: ending1/ending2/ending3/ending4