Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to stop a male cat from spraying [title] Know the difference between spraying and urinating. [step] Spraying, or urine marking, is communicative behavior that can be caused by a variety of factors. Urinating, however, is usually due to need and can often be attributed to a litter box issue alone.

Ending1: In some cases, it is indeed a fecal issue or an infection that is coming from inside the box. [substeps] Urine marking is the one of the two types of behavior that is most often caused by feminine cats. Ending2: In some cases, it may be a drink, urine, dog poop, or a doggy brush for the cat. Breeds of cats, including the calico cat, are more likely to have urinary tract infections, and can tolerate urine going where it shouldn't. Ending3: [substeps] Spraying marks are found on vertical surfaces as a cat sprays by backing up into an object. They also have less volume than simple urinating. Ending4: Once a male cat urinates, the walls, or floor of the litter box will shrink up and compete with the amount of urine the cat contains. Urine testing has insufficient evidence for this as more time passes and the cat may be able to turn down his or her substrate.

Answer format: ending1/ending2/ending3/ending4