Can we draw the following hypothesis from the context (see options)? 

Context:

How to recognize distemper symptoms in dogs<br>Look for respiratory tract signs. The first symptoms usually affect the respiratory tract. Your dog may sneeze, cough, or have thick mucus in his nose.

Hypothesis: check your pet for stuff from their respiratory
Available choices: (i). Yes. (ii). It's impossible to say. (iii). No.
(i).