The answer would be primary source since the interviewer is going first hand to a actual experienced person to gather information on, its not outdated source because that's like 1600's information on planes when its 2017, its not unreliable because unreliable is something you can't rely on or use since its not helpful, and its not a secondary source because that's like literature material research so therefore its A).
Both describe information that cannot be proved
C. to help the reader make a deeper connection to a reality through a story or symbol
