Answer:
A) Contain facts that can be proven
Step-by-step explanation:
You did not provide the excerpt, but I can answer your question anyway.
A text is objective when it's backed up by facts, when it states something that can be proven. It is not in any way affected by a person's feelings, beliefs, opinions, assumptions, and similar.
A subjective text is the opposite: it contains personal feelings, beliefs, opinions, etc.
Both subjective and objective text can include debatable details and ideas, or use persuasive words and phrases.
Thus, the correct answer is A.