Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to keep your pets happy [title] Greet your pets. [step] Even if you have a busy schedule and return home late, make sure to call out to your pets. If you have a dog, he will probably be all over you within seconds of your arrival unless he's busy trying to dig out a bone from his favourite hidden place, your couch.

Ending1: Try greeting your pets early in the day and this will typically work for making them happier. It might also be tempting to do it in the afternoon hours, but that will seem a bit harsh for your pets. Ending2: [substeps] Calling out to your pets generates a positive attitude towards them and they feel less threatened. If you have a lot of pets, call out their names one after the other. Ending3: You may also need to call your home's security service to let your landlord know that you're in the residence. [substeps] Some exceptions to this rule include when your pets are humans and other animals. Ending4: As a result, a friendly greeting greeting will irritate him and, ultimately, decrease the range of stimulation he encounters. [substeps] If you have errands that must be completed, try calling out to your neighbors whenever they get home.

Answer format: ending1/ending2/ending3/ending4