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: At first, the earth's surface layer was made up of huge blocks of hard, solid rocks. Then slowly, the rocks broke up into smaller and smaller pieces. Finally stones, pebbles and grains of sand were formed. Many sorts of plants and animals lived and died on the surface of the earth. Their remains mixed up with the stones, pebbles and formed soil. The outmost layer of the earth is soil. There are many ways in which large pieces of rock break into smaller ones. Wind, water, heat and cold help to break up rocks. When winds blow grains of sand against a large rock for a long time, the softer layers of the rock are slowly worn away. These leave holes and cracks in the rock, which become bigger and finally the rock breaks up into smaller pieces. The moving water of streams and rivers also helps to break up rocks. As the water moves along, it carries with it small pieces of rock. These rub the larger ones. Thus, the larger rocks are worn down to smaller pieces. The heat of the sun is also helpful to breaking up rocks. When the sun shines, the rocks become very hot. If these rocks are suddenly cooled, they may crack. Ice also plays a part in making soil. Water in the cracks can turn into ice in cold weather. As this happens, it becomes bigger and the cracks become wider, and finally break into smaller pieces.
Question: According to the passage, soil _ .
Options: (A) forms very slowly (B) is a mixture of stones, pebbles and sand (C) makes up the layers of the earth (D) is becoming smaller and smaller
Asnwer: A

Ex Output:
Yes

Ex Input:
Article: In 2005,the American artist Richard Prince's photograph of a photograph,Untitled(Cowboy),was sold for $1 248 000. Prince is certainly not the only contemporary artist to have worked with so-called "found photographs"--a loose term given to everything from discarded prints discovered in a junk shop to old advertisements or amateur photographs from a stranger's family album.The German artist Joachim Schmid,who believes "basically everything is worth looking at",has gathered discarded photographs,postcards and newspaper images since 1982.In his on-going project,Archiv,he groups photographs of family life according to themes:people with dogs;teams;new cars;dinner with the family;and so on. Like Schmid,the editors of several self-published art magazines also champion found photographs.One of them,called simply Found,was born one snowy night in Chicago,when Davy Rothbard returned to his car to find under his wiper an angry note intended for someone else:"Why's your car HERE at HER place?"The note became the starting point for Rothbard's addictive publication,which features found photographs sent in by readers,such as a poster discovered in your drawer. The whole found-photograph phenomenon has raised some questions.Perhaps one of the most difficult is:can these images really be considered as art?And,if so,whose art?Yet found photographs produced by artists,such as Richard Prince,may raise endless possibilities.What was the cowboy in Prince's Untitled doing?Was he riding his horse hurriedly to meet someone?Or how did Prince create this photograph?It's anyone's guess.In addition,as we imagine the back-story to the people in the found photographs artists,like Schmid,have collated ,we also turn toward our own photographic albums.Why is memory so important to us?Why do we all seek to freeze in time the faces of our children,our parents,our lovers,and ourselves?Will they mean anything to anyone after we've gone? In the absence of established facts,the vast collections of found photographs give our minds an opportunity to wander freely.That,above all,is why they are so fascinating.
Question: According to the passage,Joachim Schmid _ .
Options: (A) is fond of collecting family life photographs (B) found a complaining note under his car wiper (C) is working for several self-published art magazines (D) wondered at the artistic nature of found photographs
Asnwer: A

Ex Output:
Yes

Ex Input:
Article: Half the world's population could face a shortage of food by 2100 due to climate change, a new report by US scientists warns. Rapid global warming is likely to reduce crop production in the tropics and subtropics , according to Professor David Battisti of the University of Washington. "The most extreme summers of the last century will become common," he says. "We must immediately create crops that can bear heat and drought if we are to adapt in time," he writes in Science journal. "The stresses on global food production from temperature alone are going to be huge," said Mr. Battisti. "And that doesn't take into account water supplies stressed by the higher temperatures." He worked with Professor Rosamond Naylor on Food Security and the Environment, to examine the influence of climate change on the world's food supplies. They predict there is a greater than 90% probability that by 2100, the average growing-season temperatures in the tropics and subtropics will be higher than any temperatures recorded there to date. "We are taking the worst of what we've seen historically and saying that in the future it is going to be a lot worse unless there is some kind of adaptation," said Professor Naylor. "This is a powerful reason for us to invest in adaptation, because it is clear that this is the direction we are going in terms of temperature and it will take decades to develop new food crop varieties that can better bear a warmer climate." "In the tropics, the higher temperatures could be expected to cut production of the primary food crops by 20-40%," the researchers said. Rising temperatures are also likely to reduce soil moisture , cutting production even further. Three billion people live in the tropics and subtropics now, and their number is expected nearly to double by the end of the century. "You are talking about hundreds of millions of additional people looking for food because they won't be able to find it where they find it now," said Professor Battisti. Crop failures would not be limited to the tropics, the scientists concluded.
Question: According to Professor David Battisti, what should be done to deal with crops reduction caused by global warming?
Options: (A) To develop new crops (B) To plant more crops. (C) To control population growth. (D) To improve farming technology.
Asnwer: C

Ex Output:
No