This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to help your cat breathe easier
Watch out for nasal discharge.
Runny noses are common in cats. If your cat has some nasal discharge around her nose, it may be mucus or muco-purulent, which is mucus stained with pus.

Select from:
--These sorts of mucus are often yellow or green in color. Some cats with nasal allergies may have a clear, dripping discharge from their nostrils, but this can be difficult to spot if the cat regularly licks it away..
--While you should have your cat's and other feline's noses looked at by a vet, for example, if it is visibly bloody or has nasal infection, you should rule out any other abnormality as a cause for concern. See your vet if your cat's nose is crusty with a foul smell..
--Because this often manifests as bloody mucus or outside mucus, it is a good idea to watch out for any such discharge, just in case you notice it at any time. It's possible the cat doesn't like to continue her breathing, but you may want to have it run lightly..
--If your cat has nasal discharge, take care not to drip any of the fluid from its nostrils onto your cat. If your cat has a runny nose, and does not seem to be breathing right, or if the mucus looks milky around her nose and remains there, it may be a sign of infection..
The answer is:
These sorts of mucus are often yellow or green in color. Some cats with nasal allergies may have a clear, dripping discharge from their nostrils, but this can be difficult to spot if the cat regularly licks it away.