单选题 The statement which has not been mentioned in the passage is______

A、 business, cards are a vulgarization of the nineteenth -- century social calling card
B、 The calling card system was especially cherished by these who made no distinction between manners and mere form
C、 most people thought it improper to use business cards for social purposes
D、 everyone makes his living by selling something

【正确答案】 C

【答案解析】第一段第一句指出，今天名片(business card)被社会各阶层的劳动者随意散发和滥用。(C)明显与此意不符。