Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to prevent worms in dogs [title] Clean your dog's living area on a regular basis to remove feces and other waste materials. [step] Dogs may become infected with worms from old feces that remains in your backyard. Use a poop scooper to clean up your dog's feces every day.

Ending1: Do not dump or throw away feces. [title] Prevent hairballs with a suction trap. Ending2: Place it in a quick-access trash receptacle and dispose of it in a trashcan. [substeps] Discard any feces that have been left in your yard. Ending3: Do not allow it to build up or it may pose a health hazard to your dog. [substeps] Wash your dog's bedding at least once per week as well. Ending4: Remember to clean up after defecating and poop on your dog's clothes, clothing, bed, and shoes. You should also clean your dog's bedding once or twice per week so your dog does not re-infect the floor, a place which is prone to infected feces.

Answer format: ending1/ending2/ending3/ending4