Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to stay cool during the summer [title] Plan time inside. [step] Air conditioning is not an amenity that every household has. If you don't have air conditioning, plan a few hours to go somewhere that has it.

Ending1: Generally you want to relax outside for no more than five minutes at a time, preferably outside in a well ventilated room with the door slightly ajar. [substeps] If you are in the middle of the summer, creating more heat for warmer months is necessary. Ending2: Try to do so in the middle of the afternoon (the hottest part of the day). [substeps] Have late lunch with friends in a restaurant. Ending3: Try your favorite time, leaving yourself plenty of time to relax. [substeps] If you prefer to spend a few hours outside, look for a store that sells air conditioning components or specialty air conditioners. Ending4: You should try calling a friend (preferably a close friend or family member) on the phone to see if anyone wants to go for a drink with you. [title] Make sure your body temperature remains relatively low.

Answer format: ending1/ending2/ending3/ending4