Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to keep a cat safe [title] Secure anything that could harm your cat. [step] Make sure nothing can fall on your cat and injure it. [substeps] Fasten any heavy objects that are placed up high.

Ending1: You don't want anything heavy to fall on your cat when it's exploring. Place cords out of reach of your cat. Ending2: Secure furniture with extensions, or use kitty bars to hold down shelves and other objects. [substeps] Get cats' litter boxes or special sand boxes, so nothing falls on your cat and could hurt it. Ending3: If they fall and injure your cat, make sure you secure them to the floor with sturdy buckles. [title] Do not leave large open crates in areas of your home with dangerous animals. Ending4: Place any clean toys or bedding on the furniture or in places that could fall. Tall, thin furniture can dislodge or scratch cats, so never lower any height.

Answer format: ending1/ending2/ending3/ending4