I believe that the best answer for this question is sensory language. Sensory language engages at least one of the five senses, be it smell, sight, touch, taste, or sound. It helps the reader to further visualize what they are reading. I am unsure of what the options are for this question, but hopefully this helps!
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.