单选题 According to the author, most thin people are dangerous because

A、 their personalities are mostly made up of disgusting elements
B、 most of their personalities carry threatening elements
C、 their personalities largely endanger the life of other people
D、 they have uncooperative and unpleasant personalities

【正确答案】 B

【答案解析】[分析] 细节题型。见文章第一段第四句：Thin people come in all personalities，most of them menacing(威胁的，险恶的)和最后一句：All of them are dangerous．由此得出：瘦人的个性本身带有威胁性的因素。