In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

Example Input: Article: Heavy rains have caused disasters across China this summer, bringing the worst landslides in decades. The most deadly disaster happened on August 8 when a big landslide hit Zhouqu County in Gansu province, killing at least 1,407 people. On August 18, landslides hit Gongshan, a town in northwestern Yunnan. At least 38 people were killed and 54 are missing. Heavy rains also caused landslides in several counties in Sichuan province. People were forced to evacuate to safe places. Landslides and devastation Landslides take place when dirt and rocks slide down a slope together. Sometimes these landslides are small, and hardly noticeable. Other times however, they can be massive, involving the entire side of a mountain. Landslides can be caused by a number of different things. Often rain, which adds weight to the side of a slope, can cause one. Other times they might be caused by erosion .When a stream slowly removes the base of a slope, it weakens the entire side of the mountain. As a slide moves down a mountain slope, it can pick up great speed and energy. Some slides travel at a speed of 300km an hour. The resulting winds can be so powerful that they are known to strip the leaves off surrounding trees. Earthquakes and landslides Some experts think the landslides in Sichuan were related to the magnitude-8.0 Wenchuan earthquake on May 12, 2008. The quake has caused a change in the structure of the Earth's surface, making it more likely that land will slide in the rain, according to geologist Xu Qiang of the Chengdu University of Technology. Landslides pose threats to 140 cities and towns in the country, one quarter of which are in Sichuan, said Wei Fangqiang, a researcher with the Chinese Academy of Sciences. Landslide prevention If you want to avoid being a landslide victim, the easiest thing to do is avoid living on slopes or close to mountains. If you live in a landslide-threatened area, try not to water the slopes if possible. If there are large rocks on the slopes above your house, remove them so that they don't cause damage if they fall. It might also be helpful to plant trees on the slopes. Over time, the tree roots may make the soil firmer.
Question: The landslides around China are mentioned at the beginning of the article to _ .
Options: (A) warn travelers to keep away from those places (B) show that the environment in China is getting worse (C) introduce the topic of landslides (D) express concern for those affected by landslides
Example Output: C

Example Input: Article: C.O.P.D blocks air flow through the lungs. It makes breathing difficult. The leading cause of C.O.P.D. is cigarette smoking. Experts at the National Institutes of Health in the United States say there is no cure to the damage to the lungs. Dawn Demeo is an assistant professor at Harvard Medical School in Boston, Massachusetts. She said, "By 2020, C.O.P.D. may be the third leading cause of death across the world." C.O.P.D. is a new name for emphysema and chronic bronchitis . These are the two most common forms of the disease. Many people with C.O.P.D. have both of them. And Doctor Demeo says more women than men now die from the disease. She is the lead author of a study by a team from Harvard's Brigham and Women's Hospital and the University of Bergen in Norway. The new study adds to findings that women may be more at risk than men from the damaging effects of smoking. The team examined results from a Norwegian study of 954 people with C.O.P.D. Inga-Cecilie Soerheim co-wrote the team's findings. Doctor Soerheim says they show that women suffered the same level of C.O.P.D.as men. But the female smokers were younger and had smoked a lot less. The team also looked at two groups among the people in the study. These were people under the age of 60 and those who had smoked for less than 20 years. In both cases, women had more serious C.O.P.D. and a greater loss of lung function than men.
Question: It can be known from the study that _ .
Options: (A) female smokers die faster than male ones. (B) women are more likely to suffer from the damaging effects of smoking than men. (C) O.P.D than women. (D) in the group of people under the age of 60, men suffered more from
Example Output: B

Example Input: Article: Directions: Read the following passage. The passage is followed by several questions or unfinished statements. For each of them there are four choices marked A,B,C and D. Choose the one that fits best according to the information given in the passage. It may be open to discussion which city is the most beautiful in the world. But in terms of " the most livable", Melbourne has ranked top in a survey done by the Economist Intelligence Unit (EIU) in August. In fact, four cities Down Under are among the top ten most livable cities. The climate in Australia is warm and mild, particularly in major coastal cities. As a result, people spend much time outdoors. They go to the beach, to the countryside, or play sports outdoors in fields. Take Melbourne for example. The city features many open green spaces and beautiful long beaches. Melburnians (people from Melbourne) have a strong love for sports. The city hosts the annual Australia Open, the Formula One Grand Prix, cricket, rugby and homegrown football. It is also home to museums, art exhibitions and drama festivals. The comfortable environment has encouraged many people to migrate to the country and Australia is known for being very multicultural or its cultural diversity . "We have tried to introduce a sense of belonging in Australia," said Chris Bowen, the Australian Minister for Immigration . "Multiculturalism is about inviting every individual member of society to be everything they can be ... to develop as individuals." This could be the reason behind another Australia quality that Guardian reporter Stephen Brook has noticed: Australians do patriotism much better than the Brits. "I once witnessed two Australian viewers at a tennis tournament show more support for the Aussie player than the rest of the British arena," he wrote. It is also an Australian tradition to stand up for the _ . In the 2000 Olympic Games, the Sydney public watches an African swimmer who was barely able to swim 50 meters. Even though most people in the stands knew that even they could have swum better than him at that point, they cheered his every stroke as if he were on his way to a good medal. During the 2003 Rugby World Cup, the level of support they showed for the Japanese team surprised viewers since Japan had little hope of winning. "Australians don't need to be victorious in order to feel like a worthy person. When they cheer for the underdog, seeing other human beings having the courage to take on hardship, they get the emotional satisfaction they need," wrote a blogger on convictcreations.com, a website dedicated to Australian culture.
Question: What is the article mainly about?
Options: (A) Multiculturalism in Australia. (B) Qualities that make Australia stand out as "the most livable" place in the world. (C) The comfortable environment and lifestyle in Australia. (D) The world's most livable city, Melbourne.
Example Output:
B