{"answers": "C", "options": ["f : reid hoffman is a famous piano master .", "f : baidu ' s ceo jeff weiner is hard to get .", "f : your ceo jeff weiner is really professional !", "f : because of mary bradley , we has 50 million members ."], "article": "f : good evening , i 'm mary bradley . on today 's program , our special guest is reid hoffman , the man who started the amazingly successful in popular website , linkedin . reid , you were the first ceo of linkedin . tell us a little about your website . m : we basically provide a professional networking service , aimed at those looking to make connections within the business community . f : oh , so it 's like twitter or facebook for people looking for jobs , sharing photos , meeting people or chatting . that kind of thing ? m : not exactly . as a networking service , of course you can meet people and check with one another . photos can be shared as well . but in order to make connections , you need to be introduced by someone else first . f : so if we did n't know each other , i would need someone who does know you to send an introduction message first . and you could either accept or reject it . m : that 's right . f : in my notes , it says your website started in two thousand three . it only took you 3 years to make money . and by two thousand seven , you reached 10,000,000 users . tell us about the most recent changes in your company . m : jeff weiner took over as ceo in two thousand and eight . thanks to his hard work , we now have over 500 million members from 200 countries .", "id": "train_2371"}