In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

Ex Input:
Article: The U. S. Postal Service (USPS) is losing billions of dollars a year. The government company that delivers "small mail" is losing out to email and other types of electronic communication. First-class mail amount fell from a high point of 104 million pieces in 2000 to just 64 million pieces by 2014. Congress permits the 600.000-empIoyee USPS to hold a monopoly over first-class and standard mail. The company pays no federal, state or local taxes; pays no vehicle fees; and is free from many regulations on other businesses. Despite these advantages, the USPS has lost $52 billion since 2007, and will continue losing money without major reforms. The problem is that Congress is preventing the USPS from reducing costs as its sales decline, and is blocking efforts to end Saturday service and close unneeded post office locations. USPS also has a costly union-dominated workforce that slows the introduction of new ideas or methods down. USPS workers earn significantly higher payment than comparable private-sector workers. The answer is to privatize the USPS and open postal markets to competition. With the rise of the Internet, the argument that mail is a natural monopoly that needs government protection is weaker than ever. Other countries facing declining letter amounts have made reforms Germany and the Netherlands privatized their national postal companies over a decade ago, and other European countries have followed suit. Britain floated shares of the Royal Mail on its stock exchange in 2013. Some countries, such us Sweden and New Zealand, have not privatized their national postal companies, but they have opened them up to competition. These reforms have driven efficiency improvements in all of these countries. Additional number of workers have been reduced, productivity has risen and consumers have benefited. Also, note that cost-cutting measures--such as closing tone post offices--are good for both the economy and the environment. Privatization and competition also encourage new changes. When the USPS monopoly over "extremely urgent" mail was stopped in 1979, we saw an explosion in efficient overnight private delivery by firms such as FedEx. The government needs to wake up to changing technology, study postal reforms abroad and let businessmen reinvent our out-of-date postal system.
Question: What do we know about the USPS?
Options: (A) Its great competitor is the delivery firm FedEx. (B) It is an old public service open to competitions. (C) Its employees don't pay federal, state or local taxes. (D) It has complete control of first-class and standard mail.
Asnwer: A

Ex Output:
No

Ex Input:
Article: For Yali Liu, the hardest thing about UK higher education is having to go to the pub. "It's how much you need to invest socially with other students," she says. "I don't like going to a pub or club, but people just keep going out and I feel the pressure to go out too." This is because, unlike in China, she says, there is so much emphasis during the course on teamwork and group projects, so socialising with other students - especially British people, is crucial. Liu, 23, who is in her final year of a BSc in business administration at the University of Bath, is one of more than 80,000 Chinese students studying in UK universities. They are responsible for a large proportion of the more than PS10bn a year that international students contribute to the UK economy. However, research shows that where their academic attainment is concerned, the picture is not satisfactory. While nearly 58% of all students - and 45% of overseas students graduated with a first-class degree last year, this was true of only 35% of students from China. To find an explanation, Zhiqi Wang and Ian Crawford, lecturers at the University of Bath, compared the performance of Chinese and British undergraduates in each year of their degree. Taking a sample of 100 British and Chinese students and comparing their average marks and final degree classification, they found a dramatic drop in performance among the Chinese students between year one, when they performed better than their UK counterparts, and year two, when they performed worse. They believe the drop results from two factors. First, Chinese students fail to adapt their approaches to learning and so their performance declines in the later years when the complexity of the work increases. Second, many young people in China enroll in higher education due to pressure from family rather than their own motivation. Professor Sedghi thinks part of the problem may be the changing socio-economic background of Chinese undergraduates. While 85% of Chinese students at British universities before 2000 were mature students, often funded by the government, since 2004, however, they have been younger, most funded by their families. Maybe UK institutions need to work harder to take into account what a big challenge it is for young people from a radically different culture and linguistic background to adapt to life in the UK. "We need to do more, contacting students before their arrival, assigning them tutors, encouraging peer-assisted learning, for example," says Sedghi.
Question: What can be inferred about Yali Liu from the passage?
Options: (A) She is not good at socialising with local students. (B) She is bored with the teamwork and group projects. (C) Her family can't afford her education in the UK. (D) The university won't award her a first-class degree.
Asnwer: A

Ex Output:
Yes

Ex Input:
Article: No budget for your vacation? Try home exchanges ---- swapping houses with strangers. Agree to use each other's cars, and you can save dollars on car rentals , too. Home exchanges are not new. At least one group, Intervac, has been facilitating such an arrangement since 1953. But trading online is gaining popularity these days, with several sites in operation, including Home Exchanges. Founded in 1992, with some 28,000 listings, this company bills itself as the world's largest home exchange club, reporting that membership has increased 30% this year. The annual fee is usually less than US$100. Members can access thousands of listings for apartments, villas, suburban homes and farms around the world. Initial contact is made via e-mail, with subsequent communication usually by phone. Before a match is made, potential swappers tend to discuss a lot. However, the concept may sound risky to some people. What about theft? Damage? These are reasonable causes for concern, but equally unlikely. As one swapper puts it, "Nobody is going to fly across the ocean or drive 600 miles to come steal your TV. Besides, at the same time they're staying in your home, you are staying in their home." Exchange sites recommend that swappers discuss such matters ahead of time. They may fill out an agreement spelling out who shoulders which responsibilities if a problem arises. It does not matter if the agreement would hold up in court, but it does give the exchangers a little satisfaction. Generally, the biggest complaint among home exchangers has to do with different standards of cleanliness. Swappers are supposed to make sure their home is in order before they depart, but one person's idea of "clean" may be more forgiving than another's. Some owners say if they come back to a less-than-sparkling kitchen, it may be inconvenient but would not sour them on future exchanges.
Question: How do home exchangers normally begin their communication?
Options: (A) By phone. (B) Via a matchmaker. (C) By e-mail. (D) Via a face-to-face meeting.
Asnwer: C

Ex Output:
Yes