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

question:
Article: Pets are popular. They're good listeners, they encourage us to exercise, and they're always on our side when we argue with others. They can bring people comfort and pleasure. But it is important to keep in mind that pets can carry diseases that can make you sick. Washing your hands often -- especially after you touch, feed, or clean up a pet -- is the best way to keep yourself healthy and prevent the spread of disease. Be sure to clean your fingernails carefully every time you wash. You also can protect your health by wearing gloves while cleaning animal cages or cat litter boxes. Avoid washing your pet in the bathtub , but if you do, always disinfect the tub immediately afterward. Be sure to bring your pet to the hospital for examinations every two weeks or month and whenever your pet is sick or injured. You can do a few other things to keep yourself and your pet healthy. Only give your pet food that has been planned ahead for them. It's not a good idea to share your food with your pet. Human food (like chocolate) can make animals sick. Never feed your pet raw meat because it can carry germs that cause serious illness. And funny as it can be to see your dog or cat drinking from the toilet, don't let pets do this. It's bad for your pet's health! Give them clean, fresh water to drink at all times. Never give milk to cats. The only milk an animal should drink is from its mother. Cow's milk is not for pets, especially for cats, as _ makes them sick. Finally, some animals aren't pets. Don't take in a wild or abandoned animal as a pet because it may have diseases that could make you or your family sick. Instead, turn to an animal rescue group that is trained in helping sick or abandoned animals.
Question: To keep healthy, the author may be against _ .
Options: (A) washing your fingernails after touching your pet (B) wearing gloves when cleaning your pet's cage (C) washing your pet in the bathtub (D) bringing your pet for examinations regularly
Asnwer: C
answer:
Yes

question:
Article: During my travels through the mountains of Greece, I was only ever scared once. It was dusk and as I walked alone I came across six large wolves that were feeding on the body of a dead animal. I had heard many stories about wolves as a child and it was this animal that I feared more than any other. The wolves before me were huge, at least 6 feet long and covered with thick grey fur. As I went near, the wolves left the blood-covered snow that surrounded the body and started walking towards me, one after another. They stopped about 20 metres from me and stared. The lead wolf raised his head into the air and took in a deep breath, as if he was smelling my presence. The animals looked both beautiful and frightening, but I knew I could not show them my fear. As I drew nearer, the lead wolf raised its head once more but this time let out a long, loud cry. The awful cry rang out across the silent valley. I had never heard a more frightening sound. I was almost certain it was a sign to be death. Every moment I expected to see the pack of wolves dash at me, I knew my only hope was to pretend I had no fear. I walked past the line of wolves, like a general moving among his soldiers. They cried out loud again. But when they saw that their cry did not cause me to change my direction or make me run they feared to come after me, so they let me pass and returned to the dead animal. If I had turned back or tried to run away when they marched out to meet me, I am certain the whole pack would have attacked me in a moment. But my show of false courage scared them and kept them back.
Question: Why didn't the wolves attack the man?
Options: (A) They were no longer hungry when they saw him. (B) The man showed no fear as he passed by. (C) They were too far away to catch the man. (D) The man was already known to the wolves.
Asnwer: B
answer:
Yes