instruction:
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.
question:
Article: It was originally built to defend an empire ,but now parts of the Great Wall of China are crumbling so badly they need someone to hurry to their defense. About 2,000 kilometers, or 30%,of the ancient fortification built in the Ming Dynasty has disappeared due to natural and human damage, according to the Beijing Times. And the situation could worsen, experts are warning as not enough is being done to preserve what remains. "It's a great pity to witness the Great Wall in such terrible situation ," Mei Jingtian, a volunteer who has worked for three decades to safeguard the structure and has founded the Great Wall Protection Association, tells CNN. About 8,000 kilometers of the structure dates from the Ming period between the 14th and 17th centuries and is considered by some to be the original Great Wall.Of this, 2,000 kilometers is made up of naturally occurring earthworks - and so only 6,000 kilometers of actual Ming dynasty wall was ever built. Stretches built in other eras make up a total length estimated up to 21,000 kilometers. Many visitors to china associate the Great Wall with a widely restored stretch of Ming era wall at Badaling near Beijing, but this is far from typical of most of the structure. According to a 2014 survey done by the Great Wall of China Society, only about 8.2% of the Great Wall is in good condition, with74. 1% classified as poorly preserved, "The Great Wall is a vast heritage site - over 20,000 kilometers - thus increasing the difficulty in preservation and restoration," Dong Yaohui, deputy director of the Great Wall of China Society, tells CNN. "Reliance on a very small amount of manpower by the local heritage departments is not enough to guard and protect the site." A recent increase in interest from tourists in visiting wild sections, known as the "Wild Great Wall," has Accelerated its deterioration ,according to the report.
Question: The present situation of the Great Wall is not optimistic due to the following reasons EXCEPT _ .
Options: (A) natural and human damage (B) limited preservation (C) booming tourists visiting (D) wars between countries
Asnwer: D
answer:
Yes

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Article: Treasure hunts have excited people's imagination for hundreds of years both in real life and in books such as Robert Louis Stevenson's Treasure Island. Kit Williams, a modern writer, had the idea of combining the real excitement of a treasure hunt with clues found in a book when he wrote a children's story, Masquerade, in 1979. The book was about a hare, and a month before it came out, Williams buried a gold hare in a park in Bedfordshire. The book contained a large number of clues to help readers find the hare, but Williams put in a lot of "red herrings", or false clues, to mislead _ . Ken Roberts, the man who found the hare, had been looking for it for nearly two years. Although he had been searching in the wrong area most of the time, he found it by logic, not by luck. His success came from the fact that he had gained an important clue at the start. He had realized that the words: "One of Six to Eight" under the first picture in the book connected the hare in some way to Katherine of Aragon, the first of Henry VIII's six wives. Even here, however, Williams had succeeded in misleading him. Ken knew that Katherine of Aragon had died at Kimbolton in Cambridgeshire in 1536 and thought that Williams had buried the hare there. He had been digging there for over a year before a new idea occurred to him. He found out that Kit Williams had spent his childhood near Ampthill, in Bedfordshire, and thought that he must have buried the hare in a place he knew well, but he still could not see the connection with Katherine of Aragon, until one day he came across two stone crosses in Ampthill Park and learnt that they had been built in her honor in 1773. Even then his search had not come to an end. It was only after he had spent several nights digging around the cross that he decided to write to Kit Williams to find out if he was wasting his time there. Williams encouraged him to continue, and on February 24th 1982, he found the treasure. It was worth L3000 in the beginning, but the excitement it had caused since its burial made it much more valuable.
Question: What is the subject discussed in the text?
Options: (A) An exciting historical event. (B) The importance of logical thinking. (C) The attraction of Masquerade. (D) A modern treasure hunt.
Asnwer: C
answer:
No

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Article: Parents whose children think the latest Nike or Adidas shoes may be better than buying old-fashioned plimsolls because they encourage a healthier style of running, researchers said. Big companies, like Nike and Adidas, make millions of dollars from selling highly-cushioned shoes both as fashion and sports shoes. The researchers warn that wearing such shoes from an early age can make it difficult to run in a healthy way. Once we have grown used to running in this kind of shoes, it is very difficult to change our technique, even if we remove our shoes, it can raise the risk of injury. Children should be encouraged to wear shoes with thin soles such as plimsolls from a young age to help them develop a natural "barefoot" running style, experts said. Dr Mick Wilknson, who did the research, told the British Science Festival in Newcastle, "If I would advise someone on what to give their child, I would say don't go and buy them expensive Adidas or Nike, just get them a pair of flexible, flat shoes. Give them basic foot-ware, nothing fancy, nothing particularly cushioned." Running in flat shoes, barefoot, encourages the runner to use the front of their foot which is a better technique for running, especially long distances as the human was designed to do. Around the world, and in particular in the US, running barefoot is becoming more and more popular with many long distance runners training without shoes. Dr Mick Wilknson believes that training and running barefoot or in flat running shoes can help reduce injuries to runners, he said: "Injury rates in running have not changed since the 1970s, despite claims of improvements in running shoes. That has led some to conclude that barefoot running is better."
Question: Why are people advised to wear plimsolls?
Options: (A) They have a new fashion (B) They have better quality. (C) They are healthier (D) They are cheaper.
Asnwer: C
answer:
Yes