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 Q]: Article: Oyster What is an Oyster card? Oyster is the easiest way to pay for journeys on the bus, Tube, tram, Docklands Light Railway (DLR), London Overground and National Rail journeys in London. You can store your travel cards, Bus&Tram Pass, season tickets and credit to pay for journeys as you go. Where to get an Oyster card? There are a number of ways for you to get an Oyster card: * At over 3,900 Oyster Ticket stops * At Tube and London Overground station ticket offices * At some National Rail stations * At London Travel information Centres * Online at tfl. gov. uk/oyster How to use an Oyster card? To pay the correct fare on the Tube, DLR, London Overground and National Rail services, you must always touch in on the yellow Oyster card reader at the start of your journey, and touch out at the end. If you don't, a maximum cash Oyster fare will be changed. When using the bus or tram, you must only touch in at the start, but not at the end of your journey. What happens if I don't visit London very often? Don't worry. Any pay as you go credit on your card will not expire , so you can keep it for your next visit or lend it to a friend. Fares Traveling by Tube from Central London (Zone l)to Heathrow (Zone 6) Adult Oyster single fare PS 4. 20 Monday to Friday 06:30 - 09:30 and 16:00 -19:00 PS 2. 70 at all other times including public holidays Adult single cash fare PS 5.00 For further information, visit tfl.gov. uk /fares.
Question: Which of the following is TRUE about Oyster cards?
Options: (A) They are limited in use to the owners themselves. (B) On National Rail services you must touch them on the reader twice. (C) They are not suitable for those who don't visit London often. (D) Oyster card Tube fares cost more on public holidays than on weekdays.
[EX A]: B

[EX Q]: Article: In reflecting on the events of my life that have impacted me, I returned to the night of August 1, 2006. I found myself in a hall in New York City sitting by my mother, not at all tired, although we had flown the day before, and driven five hours to the city for "An Evening with Harry, Carrie and Garp," a charity event with readings by three authors. The excitement rushing through me kept me awake and thinking; I was standing and applauding a woman as she prepared to read. The Harry Potter series was my gateway to my academic adolescence. I was so fascinated by the magic world that my mother began taking me to academic conferences focused on the books. Since 2005, I have attended presentations about the Latin origin of terms and spells, the ancient tales, and the idea of magic. These books opened my eyes to the whole world, and to knowledge itself. They kept my brain working over the summers. More importantly, they helped me adopt the ideas useful in school and beyond, that there is always another way to do something, or to understand an issue. With uncertainty and doubt come creative ideas and new ways to look at problems that may result in new, different, faster and easier solutions. And all this came from a little "magic" from a book that many people see as a series for children. I also attended lectures about Ms. Rowling's ability to beautifully write the story, with every small detail connected to something else, for example, details in books by Jonathan Swift to Chaucer to Dickens and Austin. I learned that like all great books, Rowling's stories encouraged a connection across mind, body, and soul. Although the series has been criticized by those who believe it encourages bad behavior in children, I was able to hear discussions by those who claimed that these books teach wonderful messages if one gets its deeper meaning. It is my generation's shared text; all college freshmen are familiar with the stories, and that gives us a set of common beliefs and ideas that help us start to learn new things.
Question: What did the author do on the night of August 1, 2006?
Options: (A) He flew for a charity event. (B) He drove tiredly back home. (C) He listened to readings by some authors. (D) He enjoyed the excitement of driving.
[EX A]: C

[EX Q]: Article: I've always felt a bit sad for weekend fathers, who are divorced and must maintain a bond with their children through visits on the weekend.Not having the opportunity for a lot of quality time, they go in for quantity giving lots of gifts and taking the children on non stop outings. But now I can understand.I'm a weekend mom.My child, Henry, is a dog. Henry just returned to his father, Jack, after a happy stay with me.For ten days, I fed him the best food, canceled plans to stay home with him and let him sleep on the bed every night. Jack and I broke up a year ago.But neither of us wanted to part with Henry, so we share him.Not surprisingly, Henry is a willing participant in our contest for his love. Jack doesn't let Henry sleep on his bed, so that's where I can always gain big points.I feed Henry higher quality food.I am always replacing his expensive "thingy" ,a cotton knot he likes chewing on.It' s his favorite toy, and the only one he has is at my house.Score another one for me. Jack now has a girlfriend, Lucy.At first she was afraid of dogs, which secretly delighted me.But that Henry, just trying to be polite(the way I taught him to be),won her over. If truth be told, as time passes, there has been a slight change in Henry' s behavior toward me.The worst was one day when Jack dropped him off for a two week stay.Henry and I were in the backyard playing as Jack was driving off.When he heard Jack's truck, he ran after it for two blocks until Jack had to stop and bring him back. That hurt, especially since I had friends over at the time.In a rare conciliatory mood, Jack said to me, "You know, I' m his best friend, but you'll always be his mom." Whatever it takes, I plan to make sure it stays that way.
Question: At the writer's home, Henry _ .
Options: (A) does a lot of running (B) enjoys high quality food (C) has many expensive toys (D) is not allowed to sleep on her bed
[EX A]:
B