单选题 Which of the following is NOT true? [A] Some people know little about the topic under discussion. [B] Some people do not know what the host is talking about [C] The writer tells us that the host is silly.
【正确答案】 C
【答案解析】[解析] 原文明显表明“打进电话的人由于不了解谈话内容，而显得很傻”，并没有说主持人很傻。