I think the answer is "words that seem opposite or different" because it somewhat indicate a sentence which contains a comparison context clue.
You have not given the options to choose from, but if Wikipedia is one of the answer choices, then it is most likely that.
The answer is C. present; first-person
The correct answer among the choices provided is the fourth option. Personal testimony was used by the speaker to prove his point. The speaker talked about his experiences on how Britain tried to stop the war in Europe. He is credible since he was a Cabinet member during that time.
