Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to recognize and treat salivary mucocele in dogs [title] Look for swelling of the chin. [step] One of the major signs that a dog might have a salivary mucocele is swelling under the chin. The swelling occurs in the angle of the jaw.

Ending1: There are many different ways that the jaw may be swollen, and swelling can occur in the + (underbite) position, the b2 (gut) position, or overbite position. [substeps] The ps (trachea) position is generally a good sign and may mean that there is infection in the underbite position. Ending2: You will want to check your dog's jaw region to check if the swelling is coming from one side of the jaw, or it might be coming from other parts of the jaw that give rise to the most salivary secretions. [substeps] You can look at the jaw region, or look underneath. Ending3: In the early stages, the swelling sits to either the left or the right side. The longer the mucocele has been present, the more it spreads and it can be difficult to tell which side it arose from. Ending4: The swelling may be accompanied by swelling that slowly reduces in size. Discomfort or irritation may show up as a sign of salivary mucocele symptoms.

Answer format: ending1/ending2/ending3/ending4