Answer: C
Explanation: i hope this helps
Where the story takes place
The answer is: dangling modifier.
Dangling modifiers are separate from the word they modify, resulting in ambiguity, confusion or nonsense. In the example sentence, it is not clear which animal is walking the wire - whether the dog or the squirrel. Supposing the squirrel (which is about to fall) is walking the wire, a correct version of the sentence would be:
My dog waited for the squirrel to fall, which was walking the wire.
Actually the real answer is A to explain the significance of the topic fro the United States.