Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to set up cat shelves [title] Select a safe location. [step] The location of your cat shelves is very important. Remember, the shelves are places where your cat will not only sleep, but also run across and jump onto.

Ending1: This means you want to place them away from areas where they can hit something and break it. [substeps] Keep the shelves away from televisions, cabinets full of expensive items, couches, and beds. Ending2: Making sure your cat is not at risk and that he or she is not at risk of falling, causing injury, is especially important when there is a risk of serious injury or simply someone sneaking onto the shelves. [substeps] The shelf should be wide enough to accommodate your cat without creating a secure space to leap off. Ending3: This way, your cat won't see the shelves until you put them in their most isolated location, such as under a section of your home or fence. [substeps] Place shelves where your cat will not see them. Ending4: Make sure you have enough shelf space for a cat to still walk down it. [substeps] A room that has not been exposed to air since the end of the summer months, like an attic, may not be ideal.

Answer format: ending1/ending2/ending3/ending4