The third one. A person uses another's lack of knowledge as proof his argument is correct.
This may be helpful:
https://literarydevices.net/fallacy/
The answer is A if all you have in your paragraph are claims, people may not believe you. Hope this helps
Answer:
A, to better understand the meaning of a text
A verb tenses are formed using the INFINITIVE
It surprised people because the dance was much slower and smoother than usual.
