It's not A because that is irrelevant. It's not D because that is also irrelevant. That leaves us with C or B. I would say that it is B, because it is relevant to what is in the rest of the paragraph.
Make sure to get background information.
The fireworks exhibition has awesome effects
Antithesis
Antithesis is when two completely opposite concepts are directly compared. Unity and division are opposites that are directly contrasted.
Hope this helps!!
Answer:
major problems facing your country and suggesting ways of solving them
