PLZ HELPZ ILL GIVE BRAINLIESTTT D: What helped Chang-bo get off so lightly when he was interrogated? Cite textual evidence from paragraphs 5, 7, and 10.

heres the paragraphs
5. Chang-bo’s interrogation lasted three days. The agents yelled and cursed at him, although they never beat him—at least that’s what he told his wife. He claimed afterward that his gift with language helped him talk his way out of the bind. He cited the truth in his defense.
7. He made a convincing case. He was a commanding figure with his potbelly and his stern expression. He looked like the epitome of a Workers’ Party official. The political police in the end decided not to push the case and released him without charges.
10. In fact, they both realized how lucky they were. If not for Chang-bo’s excellent class background and his party membership, he would not have been let off so lightly. It helped, too, that Mrs. Song had at various times been head of the inminban in the building and commanded some respect from the state security officers. Chang-bo’s offhand remark was precisely the kind of thing that could result in deportation to a prison camp in the mountains if the offender didn’t have a solid position in the community. They had heard of a man who cracked a joke about Kim Jong-iI’s height and was sent away for life. Mrs. Song personally knew a woman from her factory who was taken away for something she wrote in her diary. At the time, Mrs. Song hadn’t felt any pity for the woman. “The traitor probably deserved what she got,” she’d said to herself. Now she felt embarrassed for having thought such a thing.