Diction tells a lot and highly contributes to the meaning and tone of a poem because its your word choice. The different words you use can completely change your poem.
Answer: B. That dog, the fluffy black one is the new dog we just adopted
Explanation:
There is gonna be a pause right next to "that dog"
Hope that helped, but please don't be mad if its wrong :)
B) brightest light because brighter light wouldn't make sense.