instruction:
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.
question:
Article: Mr. Smith lived in a small village. He grew vegetables. Years ago he found work in a big city and moved there with his family. On the first Saturday in their new home, Mr. Smith took his new car out of the garage and washed it. A man came at the moment. When he saw Mr. Smith's new car, he stopped and looked at it for a few minutes. Then Mr. Smith turned and saw him. The man said, "That's a nice car. Is it yours?" "Sometimes," Smith answered with a smile. "Sometimes?" The man said. "What do you mean?" "Well," answered Smith slowly, "When there's a party in town, it is my daughter's, Mary. When there's a football game, it's my son's, John. After I wash it, and it looks really nice and clean, it's my wife's. And when it needs gas, it's mine."
Question: The Smiths moved to _ .
Options: (A) a small town (B) a big city (C) a small village (D) a farm
answer:
B

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Article: Many people say dolphins are very intelligent. They seem to be able think, understand, and learn things quickly. But they are smart like humans or more like cats or dogs? Dolphins use their brains differently from people. But scientists say dolphin intelligence and human intelligence are alike in some ways. How? FACT 1: Talk to Me Like humans, every dolphin has its own "name". The name is a special whistle . Each dolphin chooses a specific whistle for itself, usually by its first birthday. Actually, scientists think dolphins, like people, "talk" to each other about a lot of things, such as their age, their feelings, or finding food. And, like humans dolphins use a system of sounds and body language to communicate. But understanding their conversations is not easy for humans. No one "speaks dolphin" yet, but some scientists are trying to learn. FACT 2: Let's Play Dolphins are also social animals. They live in groups called pods, and they often join others from different pods to play games and have fun ---just like people. In fact, playing together is something only intelligent animals do. FACT 3: Fishermen's Helpers Dolphins and humans are similar in another way: both make plans to get something they want. In the sea of southern Brazil, for example, dolphins use a interesting strategy to get food. When fish are near a boat, dolphins signal to the fishermen to put their nets in the water. Using this method, the men can catch a lot of fish. What is the advantage for the dolphins? Why do they assist the men? The dolphins get to eat some of the fish.
Question: What is the text mainly about?
Options: (A) The comparison between dolphins and humans. (B) The relationship between dolphins and humans. (C) Different types of dolphins. (D) The habitual behavior of dolphins.
answer:
A

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Article: It's likely that everything you learned about America's ancient history is wrong. The new book,1491, completely changes our understanding of the America before the arrival of Columbus in 1492. DID YOU KNOW? When Columbus landed there were probably more people in the Americas than there were in Europe. The peoples of North America had such healthy life-styles that as late as the 19th century they continued to be the tallest people on earth. Facts have shown that the Americas were populated as long as 33,000 years ago. 4,000 years ago Mesoamerican farmers developed corn in a feat of genetic engineering that still isn't completely understood. COMMENTS ON 1491 "In the tradition of Jared Diamond & John MePhee, a totally new view of pre-Columbian America". -Richard Rhodes "Attractively written and really absorbing, Charles C.Mann has produced a book that's part detective story, part epic and part tragedy . He has taken on a vast topic: thousands of years, two huge continents, and cultures." -Charles Matthews,San Jese Mercary News "Powerful and challenging" -Alan Taylor,Washingto post "A pleasure to read as well as a wonderful education" -Howard Zinn
Question: On the whole,1491 is a book mainly about America's _ .
Options: (A) life-styles (B) population (C) history (D) agriculture
answer:
C