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: Printing images is easy. Just select an image of a purple robot on your PC, for example, and press print. Your home printer exactly shoots drops of ink onto a flat piece of paper, creating the robot's 2-D image. "Printing" 3-D objects is different. Take the purple robot. First select a file of the 3-D printer. Immediately, the printer begins making noise, and a nozzle releases plastic material in thin layers. In two or three hours, a 3-D purple robot is standing before you. 3-D printing has developed to the point where printers can now create high-quality objects using a variety of materials, including metals. That means 3-D printers can now make final products that meet high industrial standards. 3-D printers are already being used to make parts for racecars and jets as well as man-made limbs and hearing aids. So far, few homes have 3-D printers. That's because 3-D printing is not only new to most people but also quite expensive. To bring 3-D printing to the masses, some retail stores plan to offer the service. For example, the Staples chain of office supply stores has announced that it will offer 3-D printing in Europe beginning in 2013. Customers will be able to submit their own 3-D designs to Staples website for printing. After the job is done, they'll pick up their item at a nearby Staples store or have it mailed to their homes. This service is sure to encourage many more people to try out 3-D printing.
Question: According to this article, who are 3-D printed parts already helping?
Options: (A) People with physical disabilities. (B) People in the solar energy field (C) People who lack suitable housing (D) People in need of computer skills
Example Output: A

Example Input: Article: A few years ago, I moved into a new house in Los Angeles. Soon after, a family moved in next door. It wasn't the best of times for me. I had just divorced from my second wife, and I wasn't working. I'd come home each day and sit by myself in the backyard. One night, I heard someone from the yard next door, "Tom ! How are you, Tom? " I couldn't see anybody through the trees, but I answered, "I' m good." "Good!" said the voice. "What's your name?" I asked. "Eric." Then I heard someone say, "Eric, don't bother him." "Okay!" Eric said. "Talk to you tomorrow!" Months later, on Halloween, we finally met face to face. Eric came to the door dressed like a rap star. We became friends. We'd hang out in our yards, and Eric, who was almost 17 at the time and look liked a 13-year-old, would tell me his ideas and dreams. Eric's dad, Alec Gores, is a billionaire , the head of Gores Technology Group. One day, Alec called me and said, "I know you are an actor. My son's an actor, too. And he's very good. I want you to write a movie for him. He wants to do something like True lies." That's the movie I made in 1994. His father has given Eric the great gif of confidence. He believes he can do anything he wants. He also offered to fund the movie. And that's how The Kid & I, which opens in November, began. Well, I really have to say that opportunity lies anywhere.
Question: What do we learn about the writer when he had just moved into his new house in Los Angele?
Options: (A) He often came back very late. (B) He was working in the city at that time. (C) He and his second wife had just gotten divorced. (D) He often talks with others in the backyard.
Example Output: C

Example Input: Article: Late that afternoon I took the train back to Sydney. There I found another surprise waiting for me. My room at the hotel had been given to somebody else and they had no room for me. Harkin had known my travel plans and had planned everything. How could he have booked the room only for three days? There was nothing to be done but to find another hotel. The waiters were happy to find me a new hotel, and when I said that I was happy to stay at the airport, thinking it might be cheaper than staying in the city, they suggested the Holiday Inn at the airport. There was one small matter: the room rate was 300$ per night. The best hotel in Katoomba had wanted only 145$. I asked if there was anything cheaper they might suggest but they warned that most hotels would already be full by this time. The hotel was far from the train station, so I had to take a taxi, as 25$. On the way to the Holiday Inn, we passed a hotel just two blocks from the Holiday Inn that advertised a room rate of 104$. At the desk I asked if their room rate could go down a lot. "No, this is a 4star hotel," the waiter told me. "In that case," I replied, "I'll just walk the two blocks to the cheap hotel." But she warned me that they were probably full and that if I didn't take the room, it might not be available when I came back. Finally, I decided to take the room. The room itself was big, but the air conditioning couldn't keep up with the Australian heat. I couldn't get to sleep until about 1:00 am.
Question: Why did the writer have to look for another hotel?
Options: (A) He was short of money. (B) He wasn't well received. (C) He didn't book early. (D) Harkin made a mistake.
Example Output:
D