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: 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.
Example Output: A

Example Input: Article: Surrounded by far - away mountains and nearby downtown buildings, a large open field was filled with lines of blue and white houses. Several kids were laughing and playing table tennis inside a play room. Some old men were playing Chinese chess and a crowd of women chatting in front of two TV sets. Two weeks after the deadly earthquake, the first batch of 1,500 people inprefix = st1 /Dujiangyan,SichuanProvince, one of the worst earthquake - hit cities, has finally settled into a peaceful life in a newly built temporary community. "Compared with tents, these simple houses make us feel more at home. My grandchild can go on with his study here," said an old woman. These one - floor buildings are totally different from their old homes. Instead of cement and bricks, the houses are made of light- weight steel or foamed plastic and can stand a 7 - magnitude earthquake. Each of the houses, featuring about 20 square meters, serves as a three - person family unit. The units have three beds and electricity. Each has its own postal address. Communal facilities will include showers, toilets and refectories . It is also planned that there should be one primary school, one hospital and one supermarket for every 1,000 homes. Everything will be free to the residents in possession of their identity cards, and work has already started in looking for jobs for the community. "More than 1.5 million such _ houses will be built inSichuan, which are expected to be in use for at least three years," said Minister of Housing and Urban - Rural Development Jiang Weixin. The government said over 5.93 million rooms in Sichuan had been leveled in the quake and more than 11 million people, which even outnumber the entire population of some countries such as Norway and New Zealand, became homeless. It is planned that all the victims will be housed by early August, and that they will stay in the temporary houses for between three and five years until permanent homes are built.
Question: On the whole, the article tells about _ .
Options: (A) life in the earthquake- hit areas (B) starting to rebuild the earthquake - hit areas (C) how to build houses in the earthquake - hit areas (D) caring for people in the earthquake - hit areas
Example Output: B

Example Input: Article: When I was growing up in the suburbs of New York, our first local Earth Day was organized around a drive to a town field where families were urged to empty items from their basements for recycling rather than dropping them in the dustbin. It was an eye opening idea for a kid in 1970. But as an environmental reporter, I'm bored of the large amount of deals and promotions that arrive by email or in my office or home mailbox on Earth Day. Like Valentine's Day, Earth Day has become a huge marketing opportunity--a way to promote consumption. In fact, Earth Day is such a good sales opportunity that some shops, like Target, have expanded Earth Day into Earth Month. There isn't time to give you a variety of the Earth Day shopping opportunities I was informed of this past week. They included deals on buying bottled water and earth-friendly wipes. My award for the silliest promotion: a plan to gift 25 of the most environmentally conscious stars with unique, useful and "green" products and services, including skin care products, cheese-cake and artwork. My guess is most of the stuff will end up in celebrities' garbage. Is buying and selling a good way to celebrate and protect the environment? I would argue that Earth Day might be an occasion to consider giving up purchases or habits that are environmentally questionable or that we could happily do without. How about not buying bottled water, but refilling a water bottle? How about not buying foods--even "organic" foods--that are packed in non-recyclable plastic? Don't get me wrong. The company of Bridgestone is celebrating Earth Day by promising to repurpose a spent tire for every tire that it sells. Verizon will plant a tree for each cell phone you trade in. Some coffee stores will even refill reusable cups at no charge. Target is giving out free reusable carrier bags without requiring a purchase. But few shopkeepers are taking the next step-charging a fee at the cash register for disposable plastic bags, a common practice in Europe-to encourage customers to use those new reusable carriers. Earth Day is transient . If you only showed love on Valentine's Day, would that really mean anything at all?
Question: The author's first local Earth Day was celebrated by _ .
Options: (A) driving to the town field (B) emptying waste for recycling (C) looking for good ideas for reuse (D) clearing items from their basements
Example Output:
B