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: I was doing my last-minute Christmas shopping in a toy store, looking at fashion dolls. A nicely-dressed little girl with her father was excitedly looking through the same dolls as well. As she was looking, a boy wandered in and sorted through some of the video games. He was dressed neatly, but in clothes that were obviously rather worn. He, too, had money in his hand, but it seemed to be no more than five dollars or so at the most. He was with his father as well, but each time he picked one of the video games and looked at his father, his father shook his head. The little girl had apparently chosen her doll, a beautifully-dressed glamorous creation that would have been the envy of every little girl on the block. However, she stopped to watch the little boy and his father. Then, the little girl put her carefully-chosen doll back on the shelf, and ran over to the video games. She excitedly picked up one that was lying on top of the other toys and raced towards the reception desk after speaking with her father. I picked up my purchases and waited in line behind them. Then, much to the little girl's obvious delight, the little boy and his father stood behind me. After the video game was paid for and bagged, the little girl handed it back to the cashier and whispered _ in her ear. The cashier smiled and put the package under the counter. I paid for my purchases and was rearranging things in my purse when the little boy came up to the cashier. The cashier rang up his purchases and then said, "Congratulations, you have been selected to win a prize!" With that, she handed the little boy the video game, and he could only stare in disbelief. It was, he said, exactly what he had wanted! The little girl and her father were standing at the door-way during all of this, and I saw the biggest, prettiest smile on that little girl's face that I have ever seen in my life.
Question: Which of the following is TRUE according to the passage?
Options: (A) The little boy got the video game because he was selected to win the prize. (B) The little girl chose the video game as her present. (C) The little girl chose the video game as well as the doll as her presents. (D) The little boy was too surprised to believe what had happened in the end.
Example Output: D

Example Input: Article: These days, if you still think the cellphone is just for talking, you will get laughed at. Yes, it's true, voice-only handsets have become out of date. Today's do-it-all mobiles have a lot in common with the computer. The only difference may be that they fit in your pocket and you pay by the minutes to use them. Some of the things a cellphone can do for you will be available this year: Surf at speed Cellpones that let you use the Web have been around for years. So, what's new? Well, faster third-generation(3G) net works let you surf at anywhere. This then allows a carrier to send video, music, and games to your phone. Possible choices are from LG Electronic VX 8000 and Motorola V 1150. Listen as you go The problem with most cellphone MP3 players is that they hold only a handful of songs. But, that's about to change. Sony Ericsson's new W800i can hold around 150 songs in its 500 MB memory. And Sumsung's SPH-V5400 even comes with a 1.5 GB hard drive. Mobile phones may eventually replace mini-MP3 players, especially for teens. Say cheese Camera cellphones are not new either. But, most of them have limitations: around 1-megapixel . But new technology has made 2-megapixel units more common and 3-megapixel units are showing up soon. Some 2-megapixel models, like Sony Ericsson's K750i, offer limited zoom and focus controls. Others, like LG's recent MMA7110, can even capture 30 minutes of full- motion video. Portable TV You say you like "watching TV"? That's what Sumsung MM-A700 wants to give you. The new model lets users watch popular TV programs--for a fee. Other choices are Nokia's 6620, Sanyo's MM 7400 and NEC's N940.The NEC model lets you watch public TV--no fee. The above are just a handful of what you will see in the coming months. Further down the road, your mobile phone may play a host of other roles, such as mobile credit card, position locator... So what is there that a cellphone can't do?
Question: Which of the following models should you choose to listen to the music?
Options: (A) Sumsung's SPH-V5400 and Nokia's 6620 (B) Sony Ericsson's W800i and Sumsung's SPH-V5400 (C) Sony Ericsson's W800i and NEC's N940 (D) Sanyo's MM7400 and NEC's N940
Example Output: B

Example Input: Article: The so-called post-90s generation have become even much "cooler" than the 1980s group, for they can speak "Martian language", a difficult code-like language created by themselves. And they probably think it very original and smart. The idea of this language is to prevent the authorities- parents and teachers- from understanding what is said. Ms. Li, mother of a 15-year-old girl, logged onto her daughter's online space and found lines of codes, mixed English, Japanese and half-finished Chinese characters, which looked completely meaningless to her. Her daughter told her that it was "Martian language" and her _ all used it. The new language is becoming very popular in online spaces- so much so that even some translating software has been created to translate the normal language into "Martian language". A 14-year-old netizen, nicknamed "S. _ Tangguo", explained that the language could be created by anyone. "At first, I just copied the language form other people's articles. Later , I began to create some words by myself. I split some Chinese characters, or use words that have similar pronunciations to interchange with each other, or even add some English, Japanese or Korean words into my article, and that makes the new language. My classmates all chat in 'Martian language'. It's in style and can help us hide our secrets from our parents or teachers." Unlike the worried parents, some experts have found positive aspects in the spread of this unusual online language. Wang Haiyong, a psychologist ,said that there's no need to be too worried about the phenomenon. This so-called "Martian language" is just a little hobby of the post-90s generation. On the other hand, the new language can inspire children's imaginations, which is a good thing. However, Wang also advised teachers and parents to give proper guidance to their children, helping them better distinguish between online language and the normative language of real life.
Question: Why do the post-90s generation create "Martian language" according to the passage?
Options: (A) Because "Martian language" can make them smart. (B) Because they want to practise their foreign languages together. (C) Because they just want to have fun by playing with the characters and letters. (D) Because they can hide their secrets from the authorities.
Example Output:
D