Read the following context and choose the best option to answer the question.
Context: On the way to work yesterday , I saw a crow land on the sidewalk with something in its beak . Immediately , another crow swooped down on him , and the two REALLY started going at it - claws , beaks , wings , cawing up a storm . The original crow ended up on its back and the whole flock descended on him , gouging and pecking at him . He struggled to get free , then finally flew off with a few crows in hot pursuit .
Question: Why did the narrator stop on the street ?
Options: 
A. They were startled by a fight among people .
B. They were startled by two bros fighting .
C. They were startled by an animal fight .
D. None of the above choices .


C