In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

[EX Q]: Article: What do working mothers worry about the most? It's the kids of course. Whatever the setting, the question I get asked the most is "Will the kids be alright?" It has made me realize that we tend to look at the glass half-empty rather than half-filled when it comes to mixing work and family. We forget about all the benefits that we bring to our children when we work - and I'm not talking about the obvious financial benefits, although these of course shouldn't be taken for granted. About a year ago I remember getting a call from the school just as I was pulling up to the house after having driven 20 minutes to the school and 20 minutes back. "Mrs. Brown Quinn, your son asked us to call. He forgot his sports clothes. Can you come back to the school and drop them off?" I was exasperated ! I had already spent 40 minutes in aggressive weekday morning traffic. I replied, "Sorry, I'm working at the moment. I'm afraid my son needs to learn to be organized." Being a good parent requires delivering tough love sometimes. Kids need to learn to be independent. It can be a cruel and competitive world out there. Seeking interests, including business, outside of your kids, can give you that extra idea that you need not care for your kids with attention. This benefit of working isn't always immediately evident. It wasn't until our daughter went away to college that she realized why we had raised her in the way that we did. "Mom, I can't believe how so many of my friends struggle to manage things on their own. They are constantly calling their parents for help." You'll love that moment! After all those years of complaining about why you don't do this or why you don't give them that, your kids realize that tough love has made them better people.
Question: The purpose of the author is to _ .
Options: (A) describe her own experience in raising children (B) advise us to mix work and family (C) throw light on a special benefit of working (D) argue for working mothers
[EX A]: C

[EX Q]: Article: Selfie is a photograph taken of oneself, typically with a smartphone or webcam and uploaded to a social media website. In the digital age, selfies have taken off in a way that no one could have predicted. The art of the selfie is one that lots of people have practiced and perfected in recent years. A recent study shows 91 percent of teens have posted a photo of themselves online. Some celebrities are regular selfie posters, too. It seems that selfies are more than just a trend. They are here to stay. Why are selfies so popular? The appeal of selfies comes from how easy they are to create and share. And posting selfies is popular for another reason: you can control your own image. "I like having the power to choose how I look," admits Samantha, a 19-year-old girl from Missouri, "even if I'm making a face." Actually, the most common selfie is the one where you look cute, partly because it's a quick way to get positive comments about your appearance. "If I feel pretty, I take one," says Andrew, a 23-year-old girl from Maryland, "when other people Like it, it's a mini boost of confidence." Sure, showing off a new coat or that you're at a cool event is fun, but can be a trap to fall in. There's a danger that your self-respect may start to be tied to the comments and Likes you get when you post a selfie, and they aren't based on who you are--they are based on what you look like. Seeking validation is totally normal, and it's a healthy way for teenagers to develop their identity. But with social networks, where it's easy to get quick approval almost constantly, the selfie thing can quickly go out of control. It may even start to feel like an addiction: when you get a "LIKE", you're up. But when you get nothing, your confidence can decrease quickly. Overall, opinions vary on selfie culture. It's up to you to shape the future of the habit. Ask yourself: are my selfies for fun, or do I need the comments? If you belong to the latter, it's recommended that you change your view. That could mean cutting selfies out entirely or just cutting down and making them more fun. So maybe you like to travel, or read or dance, or create crazy 3-D nail art...post them! Take it from us: it's so much more interesting.
Question: According to the passage, selfie is a type of _ .
Options: (A) photo (B) smartphone (C) webcam (D) website
[EX A]: A

[EX Q]: Article: Many a online shopper stayed up until 2 am on Sunday, looking through the Internet to buy products being sold at half price before they could _ (be bought)by other shoppers. Tens of millions of the Internet users were crazy to take advantage of the halfprice promotion, started by the ecommerce giant Alibaba Group on Sunday, Nov. 11, which is known as Singles' Day in China, and is the Chinese answer to Cyber Monday in the United States. By 7 pm on Sunday, 14.1 billion yuan's worth of sales was made on tmall. com and taobao. com. That could make Singles' Day the biggest ecommerce sales day on record. The research company comScore said US online retailers saw $ 1.25 billion of sales during last year's Cyber Monday, the day after Thanksgiving weekend and the busiest day for online retailers as US shoppers start to prepare for Christmas. Singles' Day originated with university students, and was later adopted by ecommerce companies as a promotional opportunity. Ecommerce companies, including Jingdong Mall and Amazon China, also took part in the promotion." In the past, people only shopped online occasionally, but now, online shopping is a lifestyle accepted by many," said Zhang Yong, Tmall president. Alibaba began to hold Singles' Day promotions in 2009, and last year, its sales totaled 5.2 billion yuan."I don't know whether we would lose money, but I don't think we could earn much on this day by selling goods at half price," said Hao Hongfeng, chairman of Beijing Jiuxian ECommerce, a liquor retailer in Beijing who took part in the event. He said it is a good opportunity for online retailers to get their names known.
Question: Who first introduced Singles' Day to the public?
Options: (A) Some college students. (B) The online shoppers. (C) Researchers in comScore. (D) The online retailers.
[EX A]:
A