Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to prepare to exit a cessna 172 in the event of an emergency landing [title] Stay calm. [step] Upon notification of a failure and the potential for a crash landing, remain calm and listen to all commands given by the pilot. [title] Ensure that your lap and shoulder belt (if installed) are tight.

Ending1: [step] Ensure this buckle is not too tight in the cockpit by closing the cabin door and noting that there is an undercarriage in the cabin opposite you. Insert stow, or clasp, behind your seat belt rods. Ending2: [step] If you absolutely need to keep your knees bent whilst performing an emergency landing, do so, but be very careful. As with any kind of emergency landing, the pilot should identify problems and fix them, but do not make a minor adjustment to your belt before sustaining an accident. Ending3: [title] Call for help if things do not go according to plan. [title] Use a spotter to help you control your plane on takeoff. Ending4: [step] To fasten your seat-belt pull down on the end of the tether. [title] Confirm the lap belt is around your hips and not your abdominal area.

Answer format: ending1/ending2/ending3/ending4