Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to protect yourself in a thunderstorm [title] Find shelter immediately. [step] If you find yourself caught in a lightning storm, the key to minimizing danger is to get inside a protective structure. While most people seek shelter if lightning appears to be near, people commonly wait too long to seek shelter.

Ending1: [substeps] If lightning does occur in your area, seek shade or cover so that it doesn't directly overshadow you or trigger the thunderstorm. No matter what you are doing, stay safe. Ending2: If you hear thunder before it starts, the debris in the structure will act as a shield. If you feel no protection from the storm itself, then stay in your shelter (or, try to cover yourself, if possible), rather than trusting yourself to the storm again. Ending3: If you can detect lightning, it may be close enough to strike you. Don't wait for it to strike right next to you (or on top of you) to get to safety. Ending4: If the thunder wakes you up in the morning, open all your doors and windows, close the doors tightly, and try to stay away from lightning until thunder has passed. [substeps] Plus, thunderstorms appear in spring and summer in northern hemisphere regions.

Answer format: ending1/ending2/ending3/ending4