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: What should I eat for breakfast? Who should I go out with on weekends? What should I do if I miss the bus to school? What colleges should I apply for? Again and again Chinese kids ask these questions to their teachers and parents. They can't make their own choices. Kids in America would be very surprised to hear how much Chinese children depend on adults. When they are ten years old, kids decide what clothes they want to wear and buy. By twelve they know what classes to take for middle school. Thirteen years old is the beginning of being what Americans call a "teenager". Now the child makes almost all his/her decisions -- what to do after school;who are his/her friends, sometimes even when to come home at night. Finally at sixteen the kid usually gets a car from his/her parents. Now he or she can come and go when he/she likes. The only rule is when they come home at night. Why should kids be independent? Think about it. After high school most of us will be by ourselves. Will our parents be able to tell us what to eat for breakfast in college? Can our teachers decide what we should do at work? Making our own choices can be quite hard and scary. But we can start with making small choices, and then slowly make bigger and more important choices. Before we know it we will become independent, confident and able to make our own decisions! And we will have a lot more fun!
Question: At what age can an American kid make most decisions by himself or herself?
Options: (A) Ten. (B) Eleven. (C) Twelve. (D) Thirteen.

Ex Output:
D

Ex Input:
Article: Nature is full of color, from rainbows and roses to butterfly wings and peacock tails. Even the fruits and vegetables you eat have different colors: blue blueberries, red strawberries, green broccoli, and orange carrots. Plant and animals often use color to attract attention. The substances responsible for these colors belong to a class of chemical called antioxidants . Plants make antioxidant to protect themselves from the sun's ultraviolet(UV) light. Ultraviolet light causes chemicals called free radicals to form within plant cells. They can destroy parts of plant. Free radicals also have damaging effects on human beings. Some of these effects like wrinkled skin can be seen. The damage is caused by the free radicals attacking cells in our bodies. Certain cancers and heart disease are linked to free radicals. Our bodies have natural defences for fighting off free radicals. While we are young, our defences are pretty strong. However, they get weaker as we get older. The body's built-in defences can only go so far without extra help. The key to fighting free radicals with fruits and vegetables is to mix and match colors. It's like sunscreen for the inside of your body. Go for a range of very bright colors. Colorful foods contain hundreds of healthy chemicals not found anywhere else. Research into how chemicals in blueberries affect the brain's function in rats suggests that these chemicals may help our own brains work more efficiently. Don't just blame the sun. Ultraviolet light isn't the only source of free radicals. If you breathe polluted air such as smog, automobile exhaust , or wasted gas from a factory, you take in chemicals that also cause such damage. And, the body itself produces free radicals as it processes food.
Question: Which of the following not true?
Options: (A) Antioxidants are responsible for plant colors (B) Plants use color to attract attention (C) Antioxidants can protect plants from UV light (D) Antioxidants help free radicals to attack plants

Ex Output:
D

Ex Input:
Article: A great-grandfather has put up his Christmas tree for the 85thtime after his father first bought it from a toy shop. Douglas Hewitt, 85, has celebrated every Christmas with the artificial tree since he was born. His father bought the tree from a toy shop in Sheffield just months after Douglas was born. The four-foot tree remains the centre point of the Hewitt family household during every festive season. Mr. Hewitt, of South Anston, South Yorkshire, said, "It reminds us of my childhood, our children's childhood and our grandchildren and great-grandchildren's after that. They all come and look at it and smile; it's become part of the furniture. If we didn't put that Christmas tree up, it wouldn't feel like Christmas." The tree was passed down to Mr. Hewitt when he married Mavis. Mrs. Hewitt said, "Year after year we have just carried on using that one. You have to be a bit more careful with it now, as it's _ ." Their daughter, June Murphy, also has fond memories of the Christmas tree. She said, "It was in my grandparents' home and then it was given to us. It looks a little thin now, as each time you get it out something else falls off. It's become a bit of a family joke. Each year someone has to comment 'not again!' But it's a Christmas tradition of getting the tree out that we all love. We'd all be sad to see it go, as I think it would be hard to find such a loved replacement." Mr. Hewitt said, "There were a lot more branches on it, and it's lost its feathers that were all along the edge. There were little candle holders on the ends and little legs on it, but unfortunately they've been lost over the years."
Question: Where did Douglas Hewitt get the Christmas tree?
Options: (A) He got it from his father. (B) He bought it from a toy shop. (C) He made it by himself. (D) He cut it down in a forest.

Ex Output:
A