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.

Q: Article: Signs in Chinese will be set up in public areas such as airports, to benefit Chinese travelers, the Italian Government announced in late February. _ . Despite the different languages, travel across Europe has never been so simple. Just five years ago, if you wanted to visit Germany in the north and Spain in the south in one trip, you had to wait for weeks to apply for different visas from the two countries. You also needed a calculator because both countries had different money. Today, with a Schengen Visa issued by any member country, you can travel across 15 European countries without stopping. Since 2002, within most of the EU, there is now just one type of money called the Euro. The Euro was designed to be the only money in the EU, and already makes it easier to shop around. If you drive, your driving license and car insurance policy are valid in the other European countries. And you can use your mobile phone everywhere. All the countries in the continent are melting into a united Europe under the EU. For Europeans and visitors, the result is that it is more convenient to travel back and forth between the different countries.
Question: Compared to five years ago, traveling in Europe has become easier because _ .
Options: (A) you needn't drive a car (B) you can use a calculator to exchange money (C) applying for different visas is much simpler (D) one visa is good enough for traveling in a number of countries

A: D
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Q: Article: Language is always changing. In a society where life continues year after year with few changes, the language does not change either. The earliest known languages had difficult grammar but a small, limited vocabulary. Over the century, the grammar changed, and the vocabulary grew. For example, the English and Spanish people who came to America during the sixteenth century gave names to all the new plants and animals they found. In this way, hundreds of new words were introduced into English and Spanish vocabularies. Today life is changing very fast, and language is changing fast too. There are several major language families in the world. Some scientists say there are nine main families, but other scientists divide them differently. The languages in each family are connected, and scientists think that they came from the same parent language. About 3 percent of the people in the world speak languages that are not in these major families.
Question: The early language had _ .
Options: (A) a lot of problems (B) words and easy grammar (C) words but no grammar (D) grammar but not many words

A: D
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Q: Article: Until last summer I had a very comfortable life: winter vacations skiing and summer cruises. My parents spent a lot of money on a private school, so they could get me into a competitive middle school. Everything was about tomorrow, next year, my graduation. We never had to worry about today. Before last summer I never thought much about the people in the world who live day to day, every day, whose lives are controlled by poverty and hunger. Then I enrolled in a two-week intensive program. We lived in a "Tribal Village," in a hot, dry open grassland in Arkansas, a state of the south-central United States. I am a tribal member in Mozambique, a country of southeast Africa. Every meal, I make the fire for my family, and feel the flames lick up my nostrils as I blow to keep the fuel alive. I cook mush with vegetables. This is all my family is ever given. I feed the hen and three rabbits their dinner. I grow attached to the rabbits, even though I know I shouldn't. I name them. I'm not getting enough to eat; it's time to decide whether or not to kill the rabbits. I feel pain but it's a privileged child's pain because I know I will soon be eating again. That's not true for a lot of other children around the world. Growing up comfortably in the U.S., I've never had to worry about my dinner, and even though this whole process was only a _ , it changed my life. Now I believe in doing whatever I can to help find practical ways to defeat hunger. So I've become president of Roots and Shoots, a group working to improve local environments for people and animals. I'm also working to create a program at my high school called the "Safe Passage" trip to help young people in the Guatemala City dump. And I've got plans to do more. I'm often thinking of laboring in the hot sun and the millions who still do. Now, I try to live for today and stop worrying so much about the future. When I eat or feel full, I am grateful for this fortunate life and want to extend the same feeling to others. I believe in offering help to those who need it.
Question: What is true about the author before last summer?
Options: (A) Her life was under great pressure. (B) Her life was well-planned. (C) She didn't have to worry about the future. (D) She had to worry about her dinner

A:
B
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