question: sincere:genuine
choices.label: A B C D
choices.text: demonstrate:argument tenacious:naughty decisive:arbitrary controversy:dispute
explanation: "sincere" and "genuine" both mean that there is no false, and they are commendatory words. the method of using arguments to prove an "argument" is called an "demonstrate," and neither is an adjective. "tenacious" and "naughty" are not similar in meaning. "decisive" is a commendatory word, and "arbitrary" is a derogatory word. "controversy" and "dispute" are neutral words.
relation: sincere genuine R1.1
relation: demonstrate argument R3.10
relation: controversy genuine R1.1