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: 1826, a Frenchman named Niepce needed pictures for his business .But he was not a good artist.So he invented a very simple camera .He put it in a window of his house and took a picture of his garden .That was the first photo. The next important date in the history of photography was 1837. That year, Daguerre, another Frenchman, took a picture of his studio. He used a new kind of camera and a different processs. In his pictures, you could see everything very clearly, even the smallest details. This kind of photograph was called a daguerreotype. Soon, other people began to use Daguerre's process. Travellers brought back daguerreotypes from all around the world. People photographed famous buildings, cities and mountains. In about 1840, the process was improved. Now photographers could take pictures of people and moving things. The process was not simple. The photographers had to carry lots of film and processing equipment. But this did not stop the photographers, especially in the United States, where from the 1840s daguerreotype artists were popular in most cities. Mathew Brady was a well-known American photographer. He took many pictures of famous people. The pictures were unusual because they were very life-like and full of personality. Brady was also the first person to take pictures of war. His 1862 Civil War pictures showed dead soldiers and ruined cities. They made the war seem more real and more terrible In the 1880s, new inventions began to change photography. Photographers could buy film readymade in rolls. So they did not have to make the film immediately. They could bring it back to their studios and develop it later, meaning that they did not have to carry lots of equipment. And finally, the invention of the small handheld camera made photography less expensive. With the small camera, anyone could be a photographer. People began to use cameras just for fun. They took pictures of their families, friends and favourite places. They called these pictures "snapshots". Photographs became very popular in newspapers in the 1890s. Soon magazines and books also used documentary photographs. These pictures showed true events and people. They were much more real than drawings. Photography had turned into a form of art by the beginning of the 20th century. Some photographs were not just copies of the real world. They showed ideas and feelings, like other art forms.
Question: The passage is mainly about _ .
Options: (A) the invention of cameras (B) a kind of new art -- photography (C) the development of photography (D) the different uses of cameras in history
C

Article: I was dirty smelly hungry and some somewhere beneath all that, suntanned .It was the end of an Inter-Rail holiday.My body couldn't take any more punishment. My mind couldn't deal with any more foreign timetables, currencies or languages. " _ ," I said, as I stepped onto home ground.I said exactly the same thing the following year.And the next, all I had to do was buy one train ticket and, because I was under twenty--five years old,I could spend a whole month going anywhere I wanted in Europe. Ordinary beds are never the same once you've learnt to sleep, in the passage of a train, the rhythm rocking you into a deep sleep. Carrying all your possessions on your back in a tucksack makes you have a vefy basic approach to travel,and encourages incredible wastefulness that can lead to burning socks that have become too anti-social ,and getting rid of books when finished.On the other hand, _ is entirely in the spirit of Inter--Rail,for common sense and reasoning can be thrown out of the window along with the paperback book and the socks.All it takes to achieve this carefree attitude is one of those tickets in your hand. Any system that enables young people to travef through countries at a rate of more than one a day must be pretty social on that first trip,my friehds mad I were at first unaware of the possibilities of this type of train ticket,thinking it was just an inexpensive way of getting to and from our chosen camp-site in southern France.But the idea of non-stop travel proved too attractive,for there was always just one more country over the border,always that little bit further to go.And what did the extra miles cost us? Nothing. We were not completely uninterested in culture.But this was a first holiday without parents,as it was for most other Inter-Railers,and in organizing our own timetable we left out everything except the most available sights.This was the chance to escape the guided tour,an opportunity to do something different.I took great pride in the fact that.in many places,all I could be bothered to see was the view from the station.We were just there to get by,and to have good time doing so.In this we were not different from most of the other Inter-Raiders with whom we shared passage floors,food and water,money and music. The excitement of travel comes from the sudden reality of somewhere that was previously just a name.It is as if the city in which you arrive never actually existed until the train pulls in at the station and you are able to see it with your own tired eyes for the first time.
Question: At the end of his first trip, the writer said"Never again"because
Options: (A) He fell ill (B) he disliked trains (C) he was tired from the journey (D) he had lost money
C

Article: For good health, be sure to eat fruits and vegetables, exercise regularly and lie as seldom as possible. A researcher is hoping this advice will someday take hold, based on results of a "science of honesty" study she completed. Half of 110 participants were told to stop telling major or minor ("white") lies for 10 weeks, while the other half (the control group) was given no special instructions about lying. The 110 people ranged from ages 18 to 71 and came from both sexes and all income levels. All came to a laboratory each week to complete health and relationship questionnaires and to take a test showing the number of major and minor lies they had told that week. When those in the no-lie group told three fewer white lies than in other weeks, they complained less of headaches, tenseness, anxiety and other problems than those in the control group. In addition, they reported that their close personal relationships had improved and their social interactions had gone more smoothly. "The link was that clear," said study author Anita Kelly, a professor of psychology at the University of Notre Dame, Indiana. "Lying less was clearly associated with better health for those people." Previous research indicates that Americans average 11 lies per week, from the little white lies to save face or falsely praise others to major lies about serious matters. Kelly said her study differs from former studies because it didn't focus on how to detect a liar, but on the potential health consequences of telling lies. "People might recognize the more harmful effect lying can have on relationships, but probably don't recognize the extent to which it can cause a lot of stress," said Dr. Bryan Bruno at Lenox Hill Hospital in New York City. At the end of the study, some participants had created smart ways to avoid lying. Kelly noted that some realized they could simply tell the truth about their daily achievements rather than exaggerate , while others responded to a troubling question with another question to take the person's attention away. They also stopped making false excuses for running late or failing to finish tasks. "People usually think white lies are acceptable. In fact, white lies are trouble, not just major lies," Kelly said. "As long as you like, you can find effective ways to avoid lying in many cases. It depends on you." "But the goal doesn't have to be the absolute absence of lies ... the goal would be a reduction in lies," she added.
Question: According to the author, doing the following things is good for health EXCEPT _ .
Options: (A) eating fruits and vegetables (B) exercising regularly (C) lying as seldom as possible (D) watching TV
D