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.

Example Input: Article: The energy crisis has made people aware of how the careless use of the earth's energy has brought the whole world to the edge of disaster. The over-development of motor transport, with its increase of more cars, more traveling, has contributed to the near-destruction of our cities and the pollution not only of local air but also of the earth's atmosphere. Our present situation is unlike natural disasters of the past. Worldwide energy use has brought us to a state where long-range planning is vital. What we need is not a continuation of our present serious state, which endangers the future of our country, our children, and our earth, but a movement forward in order to work rapidly and effectively on planetary problems. This country has been failing back under the continuing exposures of loss of morality and the revelation that lawbreaking has reached into the highest place in the land. There is a strong demand for morality to turn for the better and for some devotion that is vast enough and yet personal enough to enlist the devotion of all. In the past it has been only in a way in defense of their own country and their own benefits that people have been able to devote themselves wholeheartedly. This is the first time that we have been asked to defend ourselves and what we hold dear in cooperation with all the other people of this planet, who share with us the same endangered air and the same endangered oceans. There is a common need to reassess our present course, to change that course and to employ new methods through which the world can survive. This is a priceless opportunity. To grasp it, we need a widespread understanding of nature if the crisis we and the world are facing is no passing inconvenience, no byproduct of the ambitions of the oil-producing countries, no environmentalists' only fears, no byproduct of any present system of government. What we face is the result of the invention of the last four hundred years. What we need is a transformed life style. This new life style can flow directly from science and technology, but its acceptance depends on a sincere devotion to finding a higher quality of life for the world's children and future generation.
Question: Which of the following has nearly destroyed our cities?
Options: (A) The loss of beliefs and ideas. (B) More of law-breaking. (C) Natural disasters in many areas. (D) The rapid growth of motors.
Asnwer: A
Example Output: No

Example Input: Article: What is language for? Some people seem to think it's for practicing grammar rules and learning lists of words -- the longer the lists, the better. That's wrong. Language is for the exchange of ideas and information. It's meaningless to know all about a language if you can't use it freely. Many students I have met know hundreds of grammar rules, but they can't speak correctly or fluently . They are afraid of making mistakes. One shouldn't be afraid of making mistakes when speaking a foreign language. Native speakers often make mistakes and break rules, too. Bernard Shaw once wrote, "Foreigners often speak English too correctly." But the mistakes that native speakers make are different from those that Chinese students make. They are English mistakes in the English language. And if enough native speakers break a rule, it is no longer a rule. What used to be wrong becomes right. People not only make history, but they also make language. But people can only make their own language. They can't make another people's language. So Chinese students of English should pay attention to grammar, but they shouldn't overdo it. When they learn a foreign language, they should put communication first.
Question: Language is used to _ .
Options: (A) exchange ideas (B) practice grammar rules (C) talk with foreigners only (D) learn lists of words
Asnwer: C
Example Output: No

Example Input: Article: Convection vs. Conventional Ovens If you are in the market for a new oven and you've already begun shopping for one, you've probably noticed that there are a few different types. Two of the most popular oven types are conventional and convection. The difference in these two types of ovens is the way in which the heat in the oven is spread during the cooking process. Convection ovens A convection oven uses a fan which is usually located on the back side of the oven. The purpose of the fan is to force the heated air inside of the oven and circulate it around the item being cooked. The heater air is constantly pushed over and around the food, and therefore a convection oven cooks food much faster than a conventional oven. Not only does a convection oven cook food more quickly than a conventional oven, but it can also thoroughly cook food at lower temperatures. The average amount of time saved when cooking with a convection oven is about 20 percent of the food's normal cooking time. The temperature a convection oven uses to cook food is also about 20 percent lower than a recipe's suggested cooking temperature. Convection ovens are speedier and more efficient than conventional ovens, and therefore may be more expensive. However, professional chefs from around the world swear by them and rely on them for delicious tasting food. Also, since the air circulation in a convection oven is the same throughout, food will cook at the same rate no matter where it is placed in the oven....on the top or bottom rack or near the front or back. Conventional Oven Traditionally, most personal residences in the United States come equipped with a modern conventional oven. These are the most common types of household ovens, and are used every day to cook all sorts of meals, desserts, breads, and many other types of food. Conventional ovens are similar to convection ovens in that they both cook food using heat. They both have the ability to use either gas or electricity, depending on the hook-up in a home. Some may use either gas or electricity simply depending on what is plugged in to them, and some are made to be either gas specific or electricity specific. In a conventional oven, the heat circulation in the oven can become blocked by pots and pans inside of the oven, which will result in uneven cooking. Uneven cooking is especially noticeable when both the bottom and top racks in the oven are being used at the same time. The items on top will cook faster because heat rises to the tops and when there is a lot in the oven, the heat gets trapped there. There are pros and cons to both conventional and convection ovens. Conventional ovens have been serving people for years and years and food has been cooked successfully in them for many decades. Convection ovens have many followers and fans, but these types of ovens can be hard to get used to...especially for novice cooks.
Question: If it takes 1 hour to cook a dish using a conventional oven, how much time will one need on average to cook the same dish using a convection oven?
Options: (A) 48 minutes. (B) 45 minutes. (C) 80 minutes. (D) 20 minutes.
Asnwer: B
Example Output:
No