{"answers": "B", "options": ["f : oh , on google networking , people can ' t share photos .", "f : that ' s special ! people need an introduction message to make connection !", "f : can you tell me why do business professionals only can use google ?", "f : baidu is so special that you need to an introduction , then you can make connections ."], "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 .", "id": "train_2369"}