Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to diagnose respiratory problems in rabbits [title] Look for nasal discharge. [step] The most common respiratory problem is' snuffles ,' a disease that causes upper respiratory tract infections with a nasal discharge. The classic pasteurella infection discharge is a thick, creamy white discharge from the nostrils.

Ending1: When cut off, the mucus and blood will evaporate out from the nose. If your rabbit's nose discharge feels light, pale pink, tender to the touch, or has a yellowish pallor, it is very likely fungus. Ending2: The discharge from the nose is yellow or reddish in color. It does not appear bloody, warm to the touch, or foul smelling. Ending3: [substeps] Your rabbit may wipe away this discharge with a cotton ball. If this mucus secrets from the nose, get it tested. Ending4: However the discharge can be anything from watery to white to yellow. [substeps] Pasteurella is so commonly a cause of ill health because many rabbits have it in their respiratory tract as a normal inhabitant.

Answer format: ending1/ending2/ending3/ending4