单选题 A big difference between Kojo and Sorie was that ______.

A、 Kojo took chemicals for some useful experiment but Sorie only wasted his in making an alcoholic drink.
B、 Sorie was rich but Kojo was poor
C、 Kojo had a guilty conscience but Sorie did not
D、 when Kojo objected, Sorie proved that what they were doing was reasonable

【正确答案】 C

【答案解析】从文中可知Koio反对同学乱拿学校东西的行为，最后只是在大家的一致劝说下才违心地拿了一点，而Sorie却认为这是无可厚非的，还用各种歪理劝说Kojo，可见其是毫无愧疚之心的。