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.

Ex Input:
Article: Last year, over 206,000 students from the United States studied abroad. Does that number surprise you? These students already know the benefits of studying abroad. You may be wondering why you should study abroad. Here are some answers for you. * Timing The absolutely best time in your life to study abroad is when you are in college. If you miss this opportunity, it's almost impossible for you to do it later in life. * To gain cross-cultural experience Life overseas makes you see your everyday world in a whole new light. You don't even realize it, but our culture shapes the way we view the world and affects us every minute of the day. Differences in culture are more than just differences in language, food, clothing and art. * To improve your communication skills and your self-confidence People who study abroad tend to be willing to take risks, willing to put themselves in unusual situations, and able to solve problems. * To become more fluent in a language or to learn a new language The world market is becoming smaller, and many companies require a second language. Foreign languages are not only valuable in the job market but also valuable in the real world. * For the adventure Travel to other cities within your host country and around neighboring countries. As you get to know your new classmates, roommates, and host family, you will gain a unique view on the host culture. Discover the differences and, more importantly, the many similarities between your worlds. The friendships you make will last long after the program. * To learn more about yourself Find out who you really are. What are your limits? How do you overcome the difficulties you've never _ before? How independent are you? These questions are hard to answer until you are removed from your usual surroundings. After solving difficult problems on your own overseas, you'll find that almost nothing will confuse you at home. Students who study abroad commonly report that their study abroad experience actually changed their lives.
Question: The passage mainly talks about _ .
Options: (A) the benefits of studying abroad (B) the time for studying abroad (C) the difficulty you come across when you're abroad (D) some tips on how to get used to a new environment

Ex Output:
A

Ex Input:
Article: Do you start your work by making a list of all you have to complete, from walking the dog and washing the clothes, to phoning a or checking your emails? Do you always take a list with you to the supermarket? Do you write down all the steps you need to see a big project through? If you're a natural list maker you can consider this habit as a good thing to do. Here are some reasons: Gives your memory a kick: Even if you pride yourself on remembering all you need to complete, it's only human to forget every once in a while. A to-do list is a handy reminder. Helps you stay in the moment: It sounds surprising, but true. Trying to mentally keep track of the things weighing on your mind can make it tougher to concentrate on the activity at hand. _ : Instead of carrying around a nagging nervousness that you've forgotten to take care of a chore, keeping an up-to-date list can help relieve that kind of stress. Helps planning: Most of us are likely to put off until tomorrow what we can do today, but keeping a list helps to keep this natural impulse at bay. Thinking about what has to be done in advance is a good way to prevent us from falling behind schedule. Prioritizes : Seeing everything we want to take care of allows us to prioritize and give the most time to the more important tasks. On the other hand, not having a to-do list makes it possible for us to spend too much time on unimportant items. Boosts happiness: You will feel very happy each time you check off a task you have completed on your list. Studies show that reaching your goal actually releases feel-good chemical in your brain that boosts happiness.
Question: The author introduces the topic to be discussed by _ .
Options: (A) asking a series of questions (B) presenting some simple facts (C) stating his own point of view (D) listing the benefits of a to-do list

Ex Output:
A

Ex Input:
Article: An argument is appearing in Los Angeles over whether a newspaper should publish teachers' names along with an analysis of how well they do in raising their students' standardized test scores. Some people argue that transparency should exist at all costs, but others hold that it's unfair to label individual teachers using possibly flawed statistics. Some worry that anger over the forthcoming Los Angeles Timesarticle will make people oppose so-called "value added" analysis of teacher performance, which is the method the Times uses. "This incident with the L.A. Times is where the advocates for value-added are getting a bit ahead of themselves," says Douglas Harris, an education professor. " _ the gun on this kind of thing." "Value-added data" is the latest trend in teacher responsibility: the idea that a student's gain from the previous year's test -- as opposed to his or her overall performance -- can be measured and tied to the latest teacher. "There are too many variables in the testing process," says A.J. Duffy. But he says he opposes using value-added data in evaluations at all, although he acknowledges it could be a useful tool to give teachers feedback. "I believe in a system that emphasizes the whole student, not just standardized tests," he says. Proponents of value-added say that's a valid criticism, agreeing that no one should expect that student gains on a standardized test could capture the creativity or broader enrichment that goes on in many teachers' classrooms. The District of Columbia which attracted argument for its decision to fire teachers based in part on value-added data, uses that data for 50 percent of the evaluation, relying on other measures such as classroom observation for the rest. "No one is suggesting using _ as a single measure of performance," says Paige Kowalski. Barnett Berry, a professor, is even more critical of it. Value-added data can be useful, he and others say, but it's important to acknowledge its limitations. It doesn't take into account, for instance, constant student absence and learning gains due to summer school, after-school programs, or supplemental teachers, such as reading specialists.
Question: In the opinion of Mr. Duffy, teachers should be judged by _ .
Options: (A) the value-added data of the times (B) students' scores of standardized tests (C) the whole development of a student (D) the feedback of students and parents

Ex Output:
C