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.

Article: In the near future,we may be using our eyes to operate our smart-phones and tablets,even when it comes to playing popular games like Fruit Ninja. The Gaze Group has been developing eye-controlled computer technology for nearly 20 years.But those devices have been firstly designed to help those with disabilities,and are very expensive. "After a while,we figured out that probably the best way is to go for a mass-market way," says Gaze's Sune Alstrup Johansen."where everybody would have this available." Johansen and some of his colleagues have formed a new company,the Eye Tribe,which is hoping to develop the technology on a mass commercial level. The technology works with the help of the computing device toward the user's face. After making sure of the user's eye movements,the technology is then able to easily find where a person's eyes are moving,and then allow the eyes to control a cursor . "Our software can then determine the location of the eyes and know where you're looking on the screen to make sure what you're looking at,"reads an explanation on the Eye Tribe site. There has been a gradual change toward hands-free technology in recent years, particularly in the gaming world.Recently Xbox released the Kinect device,which lets users control their Xbox and play certain games using only their hands,legs and voices. But still,most of these devices have been more of a _ than a practical way to use one's hands to control a mobile device.Johansen said a replaceable filter would be a cheap,convenient way for most consumers. And even as companies like The Eye Tribe work to create such a product for the average user, making the eye-controlled technology more accessible and less expensive will have similar benefits for physically disabled users. For more articles on modern science,please CLICK here.
Question: Which of the following is the main idea of the passage?
Options: (A) An introduction of a new device. (B) An introduction of smart-phones. (C) An introduction of eye-controlling technology. (D) An introduction of a new technology for the disabled.
C

Article: In America today, there are almost as many people making their living as bloggers as there are lawyers. Already more Americans are making their primary income from posting their opinions than Americans working as computer programmers or fire fighters The best studies we can find say we are a nation of over 20 million bloggers, with almost 2 million Americans getting paid by the word, the post, or the click - whether on their site or someone else's. The Information Age has developed many new professions, but blogging could well be the one with the biggest effect on our culture. What started as a discussion forum for politics and new technologies has now been used in health care, the arts, fashion and just about every other imaginable area of life. What started as a hobby for volunteers is becoming big business for newly appearing sites, for companies that now depend upon their reviews and for the people who work in this new industry. All this fits with the trend toward Opinion TV. Less and less of our information flow is devoted to gathering facts, and more and more is going towards popularizing opinions. Twenty-four-hour news channels have been replaced by 24-hour opinion channels. Some bloggers even serve as "spokesblogers"-paid by advertisers to blog about the products. They are highly paid and they have to report long hours-50 to 60 hours a week. Bloggers make money if their consumers click the ads on their sites. Some sites even pay writers by the click, which is of course a system that encourages using shocking words or doing whatever it takes to get noticed. For now, bloggers say they are very happy in their work, reporting high job satisfaction. But what happens if they lose work? Are they considered journalists under shield laws ? Is there someone to complain to about false blogs or hidden conflicts? There are more questions than answers about America's Newest Profession.
Question: What's the latest profession trend in today's America?
Options: (A) Many lawyers take bloggings as a part-time job (B) More people are beginning to earn a living by blogging (C) Bloggers earn much more than computer programmers (D) Firefighters are giving up the profession in increasing numbers
B

Article: Music notes fly through my ears. Soft sounds float in the air, as if they are floating on water. Music is like a paintbrush, painting sounds in the sky. A warm sun shining bright, clouds drifting far away in the night, to the sounds of music. Music is nature's friend, as one paints our earth, and the other fills our hearts.
Question: The writer associates music with the following EXCEPT _ .
Options: (A) sounds floating on water (B) a paintbrush painting sounds in the sky (C) one friend of nature (D) a person who plays music
D