TASK DEFINITION: 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.
PROBLEM: Article: What's the most expensive place to station an employee overseas? London? Tokyo? Sao Paulo? Try Luanda, Angola. That's the finding of a survey by Mercer, the world's largest human resources consulting firm, headquartered in New York City. Two African cities (Luanda, N'Djamena) were in the top 10, along with four (Moscow, Geneva, Zurich, Bern) in Europe, three (Tokyo, Singapore, Hong Kong) in Asia and one (Sydney) in Australia. Switzerland alone has three cities in the top 10. Mercer's 2013 Cost of Living Survey examined data from 214 cities worldwide, comparing a market basket of over 200 goods and services, including unfurnished luxury two-bedroom apartments or three-bedroom houses, movie tickets, blue jeans, international newspapers, coffee, fast food restaurant meals, gasoline, milk and soda. If it sounds odd that Angola would be the most expensive, Mercer's Barb Marder explains that"Despite being one of Africa's major oil producers, Angola is a ly poor country yet expensive for expatriates since imported goods can be dear. In addition, finding secure living accommodations that meet the standards of expatriates can be challenging and quite costly."The survey found similar supply issues in N'Djamena, Chad, the other top 10 city in Africa. Mercer measured locations worldwide against New York, on a U.S. dollar basis, meaning that exchange rate shifts could impact the rankings. For example, although Tokyo is Asia's most expensive city for people who live in a foreign country, the weakening of the Japanese yen against the dollar makes it seem cheaper than it was a year ago. Canada, too, has become a bargain as the U.S. dollar strengthens against the Canadian dollar. Measurements were taken in March, 2013. What's the trend in the United States?"Overall, U.S. cities either remain stable in the ranking or have slightly decreased due to the movement of the U.S. dollar against the majority of currencies worldwide,"explains Mercer's Steven Nurney. However, that may change as real estate prices rise nationwide. New York is the nation's most expensive place to station expatriates. While housing is generally the most important factor in the survey rankings, the survey revealed some other significant differences in prices. For example, you may need a vodka chaser after paying $ 8.29 for a cup of coffee in Moscow, but the same coffee in Managua, Nicaragua would cost only $ 1.54. Expect to pay $ 20.10 for a movie ticket in London, versus $ 5.91 in Johannesburg.
Question: Which of the following cities may be the cheapest for employees overseas?
Options: (A) Geneva. (B) Sydney. (C) Tokyo. (D) New York.

SOLUTION: D

PROBLEM: Article: Every year on my birthday, from the time I turned 12, a white gardenia was delivered _ to me at my house. No card or note came with it. Calls to the florist were always in vain ---- it was a cash purchase. After a while I stopped trying to discover the sender's identity. But I never stopped imagining who the anonymous sender might be. My mother often contributed to these imaginings. She'd ask me if there was someone for whom I had done a special kindness who might be showing appreciation. Perhaps the neighbor I'd help when she was unloading a car full of groceries. Or maybe it was the old man across the street whose mail I retrieved during the winter so he wouldn't have to venture down his icy steps. When I was 17, a boy broke my heart. The night he called for me the last time, I cried myself to sleep. When I awoke in the morning, there was a message scribbled on my mirror in red lipstick: "Heartily know, when half-gods go, the gods arrive." I thought about that quotation from Emerson for a long time, and I left it where my mother had written it. When I finally went to get the glass cleaner, my mother knew everything was all right again. I don't remember ever slamming my door in anger at her and shouting, "You just don't understand!" because she did understand. One month before my high-school graduation, my father died suddenly of a heart attack. My feelings ranged from grief to abandonment, fear and over-whelming anger that my dad was missing some of the most important events in my life. I became completely uninterested in my upcoming graduation, the senior-class play and the prom-events that I had worked on and looked forward to. But my mother, in the midst of her own grief, would not hear of my missing out any of those things. The day before my father died, she and I had gone shopping for a prom dress and found a spectacular one. Wearing it made me feel like a princess, but it was the wrong size, and when my father died the next day, I forgot all about the dress. My mother didn't. The day before the prom, I found that dress-in the right size, draped over the living room sofa, presented to me -- beautifully, artistically and lovingly. I didn't care about having a new dress, but my mother did. She wanted her children to feel loved and lovable, creative and imaginative. My mother died when I was 22, only ten days after I was married. That was the year the gardenias stopped coming.
Question: Why did Mother try to arouse the author's imagination about the gardenia sender?
Options: (A) Because she wanted her child to feel cherished and loved not just by her but by the world. (B) Because she had a great curiosity like a child. (C) Because she was romantic and she once experienced such the same thing at her young age. (D) Because she wanted to give her child some tips about the gardenia sender.

SOLUTION: A

PROBLEM: Article: Many people have long dreamed of being able to fly around as simply as riding a bicycle. Yet the safety and strength of a flying bike was always a big problem. Over the past 10 years, developments in technology have moved the dream of personal flying vehicles closer to reality. Now, two groups of inventors say such vehicles may be available very soon. Grant Stapleton from Malloy Aeronautics says the Hoverbike, which is able to get in and out of small spaces very quickly, will be a truly personal flying vehicle. "It can be moved across continents very quickly because it can be folded and packed," he adds. Mr. Stapleton says safety was the company's main concern when developing the Hoverbike. He ays the designers solved the safety issue by using overlapping rotors to power the vehicle. The company is testing both a one-third size model and a full-size prototype of the Hoverbike. Inventors say their Hoverbike will most likely be used first by the police and emergency rescue teams. In New Zealand, the Martin Aircraft Company is also testing a full-size prototype of its personal flying bike, called Jetpack. It can fly for more than 30 minutes, up t0 1,000 meters high and reach a speed of 74 kilometers per hour. Peter Coker is the CEO of Martin Aircraft Company. He said Jetpack "is built around safety from the start, " In his words, "reliability is the most important part of it. We have safety built into the actual structure itself, very similar to a Formula One racing car. " Jetpack uses a gasoline-powered engine that produces two powerful jet streams. Mr. Coker says it also has a parachute that can be used should there be an emergency. "It opens at a very low altitude and actually saves both the aircraft and the pilot in an emergency," he adds.
Question: Which of the following words can best describe the Hoverbike?
Options: (A) Powerful. (B) Fast. (C) Portable. (D) Available.

SOLUTION:
C