What is the most logical next event?

How to take care of a stray cat 
Identify a lost pet cat. 
Pet cats do not behave in the same way feral ones do, although if a cat has been lost for some time or is frightened, it may behave in a way that appears feral. If the cat approaches you and does not appear to fear humans, it is likely a lost pet.

Pick your answer from: [I] A collar is an easy way to identify a lost pet cat. Pet cats may appear less clean than feral cats because they are unaccustomed to living outside and needing to clean themselves more frequently.. [II] The easiest way to identify a lost pet cat is to look it in the eyes, ears up and its skin gently combed. This can help mask its disorientation and early aggression.. [III] Take the cat out for a walk. If the cat seems nervous, is smart, and appears energetic when you speak to it, it likely is a lost cat.. [IV] Cats who are easily abandoned or that are kept very close to home are more likely to be feral. If you have a stray cat, it is likely that the owner believes they have abandoned your cat..
[I]