Answer:
The correct answer is D) the dog accidentally escaped from its home
Step-by-step explanation:
There is evidence in the sentence that helps you infer that the dog has an owner (collar with name tag), and is well taken care of (clean, healthy looking dog).
So option A) that the dog is abandoned or neglected is incorrect.
Also, there is no evidence that shows that the dog is dangerous since it is "wandering" around the sidewalk. The verb "wander" means walking with no problem and leisurely.