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.

Input: Consider Input: Article: Surface Exploration. Robots make great explorers on planets,moons,and other landing areas. Aside from earth,just about every surface in the solar system is unsafe for humans to explore. The air on most other planets is insufficient for humans to breathe,making it necessary to wear a space suit and oxygen equipment. The temperatures on these surfaces are much too hot or much too cold for any humans to withstand .Plus there would be complications with radiation,weather,and a lack of gravity. Robots have much less limitation in these areas and can survive much longer under these conditions. Data Collection. Robots are designed for collecting scientific data. Robots are also able to perform many tasks at a time and can process information much quicker and more efficiently. Important scientific projects from detecting minerals,analyzing ground samples,and finding water are all performed much quicker and more accurately by robots. Cost Effective. The use of robots has made the cost of space exploration much less expensive than it would cost for humans to do the work. In order to successfully send humans into space we would need to build a vehicle that can not only carry humans,but also enough food and water to keep them alive for the duration of the trip. Moreover,robots have no problems working for hours on end. Robots never complain,they don't require food or water,and they never need a bathroom break. Space Travel. Over the past 30 years or so there have been many different types of robots used successfully in the exploration of space. Perhaps the most famous and successful robots are the Spirit and Opportunity who have both been exploring the surface of Mars. They have both been very successful with experiments on soil and rocks and have even found evidence of water in Mars' history.
Question: According to the passage,which of the following is NOT true?
Options: (A) The use of robots in space exploration costs more than the use of humans. (B) It may be dangerous for humans to explore the solar system except the earth. (C) Both the Spirit and Opportunity have found the evidence of water in the Mars. (D) Many different types of robots have explored the space successfully.

Output: A

Input: Consider Input: Article: No matter where you travel in Asia, you'll find yourself faced with a new culture. You can start your Asian exploration by visiting some of these attractive cities first. Beijing, China Beijing is the second largest city in China and serves as the capital. The city is so old, in fact, that almost every building has some sort of cultural or historic features -- no matter how small. Getting around the city you'll find yourself faced with amazing temples , the largest palaces in the world, and many works of art that leave you breathless. Siem Reap, Cambodia Siem Reap is the capital city of Siem Reap Province in northwestern Cambodia. Siem Reap has a lot of French and Chinese-style architectures. In the city, there are traditional dance performances, silk farms, fishing villages and a bird sanctuary near the Tonle Sap Lake. Siem Reap today, being a popular tourist attraction , has a large number of hotels and restaurants. Kathmandu, Nepal Situated in the heart of the Himalayans, Kathmandu, the largest city and capital of Nepal, is considered to be one of the most outstanding cities in the world today. The shopping districts are world famous and the hotels in Kathmandu are among the most comfortable in the world. Kyoto, Japan The city of Kyoto served as the capital of Japan from 794 to 1868. No longer the capital, it is known for being the seventh largest city in Japan. Kyoto was destroyed throughout history by fires and war. But now the city is home to more than 1.4 million people, and it presents a modern face to the rest of the world. Every city throughout Asia has a story of its own. It's up to you to explore them all and find out exactly what each one has to offer. Enjoy!
Question: If you want to visit the biggest place where ancient emperors lived in the world, you can go to _ .
Options: (A) Beijing (B) Siem Reap (C) Kathmandu (D) Kyoto

Output: A

Input: Consider Input: Article: Next time you raise an eyebrow at the views of your partner, friend, sibling or colleague, remember they could be helping to make you smarter. New research shows that intelligence is not fixed but can be boosted throughout adulthood by family members, bright mates and intellectually stretching careers. The study challenges the commonly held belief that intelligence is static by the age of about 18. Current scientific consensus suggests that intelligence is controlled by genes, with environmental factors such as schooling and nutrition playing a partial role up to this age. After this point, IQ scores stabilize . But James Flynn, professor of political studies and psychology at the University of Otago in New Zealand, argues that people can "upgrade" their own intelligence throughout their lives. He believes intellectual stimulation from others is crucial as the "brain seems to be rather like a muscle - the more you use it, the stronger it gets". However, the opposite is also true - so people sharing a home or workplace with those who are intellectually challenged risk seeing their IQ levels fall as a result. He found the "understanding quality" of a family changes the IQs of all members, especially children. It can "lift" or hold back, depending on the "gap between their brightness and that of their siblings and parents". A bright ten-year-old with brothers and sisters of average intelligence will suffer a five to ten point IQ disadvantage, compared to a similar child with equally bright siblings. However, children with a low IQ could gain six to eight points by having brighter siblings and special educational treatment to help pull them up. Professor Flynn also concluded that although genetics and early life experiences determine about 80 percent of intelligence, the remaining 20 percent is linked to lifestyle. This means that people can raise their IQ, or allow it to fall, by ten points or more. Therefore, the best way to boost IQ level is to mix with bright friends, find an intellectually challenging job and marry someone cleverer.
Question: We can learn from the passage that _ .
Options: (A) as the age grows, you will become smarter (B) a 35-year-old man is surely smarter than himself at the age of 18 (C) you will be smarter if you have a partner, a friend or a sibling (D) after 18, you still have the possibility to become smarter
Output: D