The sentence that uses parallel structures is B) My three favorite activities are writing, reading, and going to the library.
A parallel structure means that the same form of a verb is used in a sentence, and as you can see, here only gerunds are used - writing, reading, going - they all have -ing in the end.
The other sentences don't have a parallel structure because they don't use the same forms.
1. Personification. Chimneys do not have legs, nor do they bounce on fours. The act of personifying is to give a non living item human qualities.
2. Metaphor. The sentence is comparing a bridge to an eye without the use of like or as.
3. I’m not sure on this one. Maybe metaphor (glass bowl to a hill).
4. Likely a simile. This sentence is comparing the bride to a fan while using like.
Answer:
A letter is a handwritten or computer typed response while a novel is a story.