Please choose the correct ending to complete the given sentence: Health: [header] How to help prevent epidemics from spreading [title] Wash your hands when preparing food or going to the bathroom. [step] Practice good hand hygiene by washing your hands with antibacterial soap and water for at least 20-40 seconds. Make sure you wash your hands before and after you prepare food as well as before and after you go to the bathroom to prevent the spread of germs.

Ending1: [substeps] You should also clean your hands well after being in a public place, such as the bus, the office, or the grocery store. You can also use hand sanitizer throughout the day to kill germs. Ending2: [substeps] When you're preparing meals or snacks, make sure that you wash your hands before handling foods. [title] Skip products with antiviral ingredients. Ending3: [title] Spray 2 tablespoons of permethrin oil on your hands to prevent spread of hiv. [step] Permethrin oil protects the health of the skin from carrying viruses. Ending4: [substeps] If you choose to wash your hands before and after cooking or going to the bathroom, use antibacterial soap. Let the soap sit for about 20 minutes to dissolve the soap from your hands, then scrub your hands.

Answer format: ending1/ending2/ending3/ending4