Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to treat ascarids in dogs [title] Look at your dog's belly. [step] Many dogs, especially if they are older, do not show outward signs of an ascarid infection. If you have a puppy, though, you will probably notice if he has ascarids.

Ending1: Therefore, you may notice that he displays a visible greenish discharge coming from the infected site. Always carefully examine your dog's belly. Ending2: This will cause a foul-smelling odor, so err on the side of caution when trying to treat ascarids in puppies. [substeps] Another distinguishing symptom is a discolored belly. Ending3: You might be able to get an asarcoma drug (nrt) to help your puppy, but there are rare amounts of nrt available over the counter. These drugs can come in either liquid or filled syringes, though you can generally find them on the drug side of the packaging. Ending4: A classic symptom of an ascarid infection is a pot belly. [substeps] The harmful activity of the ascarids in the intestines causes the pot-bellied appearance.

Answer format: ending1/ending2/ending3/ending4