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: Shopping in the United States changes a lot.About ninety years ago most people shopped in small stores that were owned by one person or a family.Women went from the bakery to the butcher's to the grocer and on to the fruit and vegetable seller in order to get their food for the week. Then about sixty years ago, supermarkets were born.In a supermarket, people could get all the different kinds of food they needed without going to different stores. The next big change in shopping in the United States was the shopping mall.A shopping mall is a group of stores under one roof.Because malls allowed people to shop without worrying about the weather, they soon became very popular.The mall became a place for people to socialize in addition to shopping.If you walk through a mall, you will see older people sitting, chatting and drinking coffee.Malls are places for teenagers to hang out.Many teens will often just "go to the mall" and spend time with their friends. The recent change in American shopping was the superstore.Large chain stores such as Wal-Mart, Office Depot and Toys "R" Us have been built all across the United States.Because they are so large, they can buy goods at a great discount and sell them much cheaper than smaller stores. Sometimes, when they are built near small towns, many of the small town stores have to close.They just cannot compete with their giant neighbors. And now, online shopping is becoming more and more popular all over the States.People are too busy to go to the physical stores, so they go shopping over the Internet.Online shopping has lots of advantages.For instance, online stores are usually available 24 hours a day.Searching or browsing online shops can be faster than browsing the physical stores.While, online shopping also has its disadvantages.People are at higher risk of being cheated on the part of the merchant than in a physical store.And privacy of personal information may be let out.
Question: Which is the place for people to spend time with others according to the passage?
Options: (A) Shopping malls (B) Small stores (C) Supermarkets (D) Superstores

Ex Output:
A

Ex Input:
Article: A jobless man applied for the position of "office boy" at Microsoft. The HR manager interviewed him and then watched him cleaning the floor as a test. "You are employed," he said. "Give me your e-mail address and I'll send you the application to fill in, as well as date when you may start. " The man replied, "But I don't have a computer, neither an e-mail. " "I'm sorry," said the HR manager. "If you don't have an e-mail, that means you do not exist. And who doesn't exist cannot have the job. " The man left with no hope at all. He didn't know what to do, with only ten dollars in his pocket. He then decided to go to the supermarket and buy 10kg tomatoes. He then sold the tomatoes from door to door. In less than two hours, he succeeded to double his capital. He repeated the operation three times, and returned home happily with 60 dollars. The man realized that he can survive in this way, and started to go every day earlier, and return late. Thus, his money doubled or _ every day. Shortly, he bought a cart, then a truck, and then he had his own fleet of delivery vehicles. Five years later, the man is one of the biggest food retailers in the US. He started to plan his family's future and decided to have a life insurance. He called an insurance broker and chose a protection plan. When the conversation was concluded the broker asked him his e-mail. The man replied, "I don't have an e-mail. " The broker answered curiously, "You don't have an e-mail, and yet have succeeded to build an empire. Can you imagine what you could have been if you had an e-mail?" The man thought for a while and replied, "Yes, I'd be an office boy at Microsoft!"
Question: Why can't the man have the job at Microsoft?
Options: (A) Because he was lazy. (B) Because he didn't pass the test. (C) Because he didn't have an e-mail. (D) Because he didn't have a computer.

Ex Output:
C

Ex Input:
Article: Dogs and cats are not for students who live in the dormitory. Just think about the noise, the smell and all that wild behavior--chewing on whatever they can get their teeth on, or knocking over the trash can. But don't feel sad. There are smaller and less destructive pets to make your dormitory life colorful. Betta fish They make great pets with their big personality and astonishing colors, ranging from bright red, dark blue to lemon yellow. Unlike many fish, most bettas react to their owner's presence and become more active when they are nearby, which is unusual in the fish world. Chinchillas Without bad smell, about the size of a rabbit and with fur so dense that they can't get pests such as fleas , the friendly creature originally from the Andes Mountains in South America makes an ideal indoor pet. Chinchillas are very social animals, so if you only have one, you will become its family. In cold winter days, in a glance at this fury pet in a dorm will bring you a lot of warmth. Land hermit crabs In a society where owners are often asked "Are they tasty?", land hermit crabs are among the most unlucky animals commonly kept as pets. But they are easy to care for, inexpensive and fascinating to watch. And the fact that they don't cause any allergic reactions makes them perfect for college dormitories. Red-eared sliders If you're interested in a lifelong friend, a red-eared slider makes a wonderful pet. If well cared for, they can live for around 40 years. But there are a couple of things you should know. Red-eared can grow to an adult size of up to 30cm! So you may need a larger tank quickly. In addition, you will need to provide UV lighting, water heater, and a swimming area and a basking area. Housing a red eared slider is not easy.
Question: All the dormitory pets mentioned in the text are _ .
Options: (A) active and allergic (B) quiet and peaceful (C) colorful and tasty (D) small and smelly

Ex Output:
B