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: Manage your time well for each module , but also make sure you get a good balance between work and social life. That is for life in general. Set aside time specifically for each subject. Try to study one subject a day. You need to balance time. If you are bad at balancing things, make a personal timetable. Even if you do not stick to it, you will have an idea what you should be doing each day. This is better than trying to do everything each day and, at the end of the week, not achieve anything. Also, try to keep your weekends free of studying. Only study at the weekend if you really have to. I had to learn to balance work, study and family when I was at college. I was a retail assistant working part-time and had at least four modules to complete at the same time at college. I also had to help around the house doing household cleaning and shopping at times. I managed to finish my college work on time, which was very difficult and hard, and still hold down a job. Why was it possible? Because I only thought about my part-time work when I was at work on the weekends and my college work had to be done from Mondays to Fridays before the weekends. This was hard--but you need to set a timetable for yourself. It was an achievement when I finally realized that things have to be done in order, and need to be organized as well. Balancing study and other aspects of your life can be a problem if you have a job or a family, but planning in advance is helpful. Use the time you have well. Do not leave anything until the last minute, as this will only cause problems.
Question: According to the passage, which of the following is NOT the advice the writer gives?
Options: (A) Try to study many subjects in a day. (B) Try not to study on the weekends. (C) Plan in advance. (D) Try to set a timetable.
Example Output: A

Example Input: Article: Adding math talk to story time at home is a winning factor for children's math achievement, according to a new research from the University of Chicago. The study from psychologists Sian Beilock and Susan Levine shows a marked increase in math achievement among children whose families used Bedtime Math, an iPad app that delivers engaging math story problems for parents and children to solve together. Even children who used the app with their parents as little as once a week saw gains in math achievement by the end of the school year. The app's effect was especially strong for children whose parents tend to be anxious or uncomfortable with math. Previous research from this group has demonstrated the importance of adults' attitudes about math for children's math success. For example, a recent study found that math-anxious parents who help their children with math homework actually weaken their children's math achievement. The new findings demonstrate that structured, positive interactions around math at home can cut the link between parents' uneasiness about math and children's low math achievement. "Many Americans experience high levels of anxiety when they have to solve a math problem, with a majority of adults feeling at least some worries about math," said Beilock, professor in Psychology and author of Choke, a book about stress and performance. "These math-anxious parents are probably less likely to talk about math at home, which affects how competent their children are in math. Bedtime Math encourages a dialogue between parents and kids about math, and offers a way to engage in high-quality math interactions in a low-effort, high-impact way." Study participants included 587 first-grade students and their parents. Families were given an iPad installed with a version of the Bedtime Math app, with which parents and their children read stories and answer questions involving math, including topics like counting, shapes and problem-solving. A control group received a reading app that had similar stories without the math content and questions related to reading comprehension instead. Children's math achievement was assessed at the beginning and end of the school year. Parents completed a questionnaire about their nervousness with math. The more times parents and children in the math group used the app, the higher children's achievement on a math assessment at the end of the school year. Indeed, children who frequently used the math app with their parents outperformed similar students in the reading group by almost three months in math achievement at year's end.
Question: Bedtime Math is an iPad app that _ .
Options: (A) requires parents and children to answer reading comprehension questions (B) assesses children's math achievement and parents' nervousness with math (C) teaches children how to count, recognize shapes and solve practical problems (D) encourages children together with their parents to solve math story problems
Example Output: D

Example Input: Article: Recently a committee of the National Academy of Sciences inprefix = st1 /Washingtonreleased a report .It confirmed that world temperatures increased about six-tenths of a degree Celsius in the last one hundred years. The report also confirmed evidence that the level of carbon dioxide in increasing. The best information about climate in the past comes from tests of ice many kilometers deep in Antarctica and Greenland .These tests show that levels of carbon dioxide today are the highest ever measured .These findings have led scientists to believe that carbon dioxide is a major cause of climate warming. Carbon dioxide is released into the atmosphere when fuel is burned. Oil ,coal and wood are all fuels that release the gas .When biological waste breaks down ,it also releases carbon dioxide. However ,plants use carbon dioxide in the process called photosynthesis. This process provides food for almost all life on Earth. Some groups that support burning oil and coal want to increase the amount of carbon dioxide in the atmosphere . They oppose international efforts to control carbon dioxide. Some scientists believe that forests and trees are able to capture large amounts of carbon dioxide from the air. Some groups even suggest that an increase in carbon dioxide could cause plants to grow faster. A recent study inNorth Carolinafound that more carbon dioxide in the air could cause trees to grow faster .But the researchers found the effect appears to last for only three years. Another study showed that much of the carbon dioxide that is taken in by trees in released within three years. The study noted that leaves released carbon dioxide when they fall from trees and break down in the soil. Plants also naturally release carbon dioxide through the process of respiration.
Question: Which one is NOT mentioned in this passage that can be the source of carbon dioxide?
Options: (A) Oil (B) Trees (C) Wood (D) Soil
Example Output:
D