Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to prepare vermicompost [title] Pick a spot in your house to place the worm bin. [step] The best spots for worm bins keep a consistent temperature and moisture level. Avoid placing it near a heater, oven, air conditioner, or vent.

Ending1: Although worm bins usually don't produce much smell, you may want to keep it out of the main living areas of your home. [substeps] The ideal temperature for the worm bin is 55 to 75 degrees fahrenheit, or 12. Ending2: Remember the most common places to place a worm bin include under the refrigerator, in a garage, under the bathtub, or at the farthest corner of the room from what's in your living space. [substeps] The best place to place a worm bin is in a crawl space. Ending3: [substeps] Do not place it close to open windows. A draft from a heater or open window might make the worm bin dangerous. Ending4: Place the bin close to doors, chimneys, or other means of escape. [title] Place the bin in a heat-safe spot.

Answer format: ending1/ending2/ending3/ending4