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.

[EX Q]: Article: My first experience of modern city life was quite impressive. I was very curious when I arrived in London. First, I noticed so many people were on a trip in a busy way. When I first saw the machine on the underground where you are expected to feed your ticket in and have to run through moving barriers , I was completely fascinated at it. Flashing with the light, the little green man, telling you when to cross the road, was also quite interesting, and so were those street advertisements which kept changing subjects as you look. In my native place, my life is so different from people's here. I am a market gardener from Makono, a village which is led by a market-managing group. People there usually walk two hours a day to get water from a well. What's more, I am used to going, for many hours, without drinking , so it was strange to be offered cups of tea all the time here in London. In my native place, on market days, I usually walk for several hours with my basket full of fruits and vegetables on my head, carrying them to the market for sale, to earn PS1per basket. Without the produce from my garden, I could not pay for education or healthcare for my children. Gardening is not a hobby for me - it's _ . But here people are planting something only to kill their leisure time. During our visiting-time in Britain, we visited some local government agencies, schools, churches and farms in Sussex, Scotland, Yorshire, Loncolnshire and Cambridgeshire, meeting people who were of the same profession as we are. Children in Burley-in-Wharfedale, Yorkshire, prepared a special get-together to greet us and we were also asked a lot about our life which was quite fascinating to them. For example, how we make our houses out of mud and how we get our water for our daily necessities, as well as for our garden.
Question: The most disadvantage in the writer's native place should be that _ .
Options: (A) there are many market-managing groups for gardeners (B) the lack of water makes the life there even harder (C) people there like to travel about on foot for enjoyment (D) people support themselves using the garden produce
[EX A]: B

[EX Q]: Article: Fatu Kekula is a hero. The 22-year-old Liberian nursing student, in her final year, managed to save the members of her immediate family from the Ebola virus, all without the help and convenience of a hospital. Kekula reduced the rate to 25 percent. Four of her family members were infected with the virus. Her father, Moses, her mother, Victoria, her sister, Vivian and her 14-year-old cousin, Alfred Winnie. Sadly, Kekula's cousin _ the virus. It's also impressive to note that while Kekula was treating her family members she managed to avoid Ebola entirely. On July 27, Kekula's father, Moses, went to a hospital in Kanata, after his blood pressure rose sharply. The only reason the hospital had a bed to offer him was because someone had just died. But the staff in the hospital didn't realize the patient died from an Ebola infection. Shortly, after he was admitted to the hospital, Moses developed a fever, started vomiting and was suffering from diarrhea. Once nurses started dying of Ebola, the hospital shut down and Moses had to leave. Kekula drove 90 minutes to Monrovia, the capital of Liberia, to seek treatment. Three hospitals turned them away because there is no spare bed for patients at all. Kekula made the drive back to Kanata to another hospital. They told Moses he had typhoid fever and did very little to treat him. So Kekula took him home. Once he was there, he infected three other family members. Her mother, sister and their cousin who was living with them. Kekula only lost one patient, her cousin. Her method proved so effective that international aid workers, including UNICEF, began teaching it to others in West Africa who may not be able to get to hospitals for treatment. Her father, mother and sister were already recovering when space became available at the JFK Medical Center on August 17. Alfred passed away at the hospital the next day. Kekula's father, Moses said, "I'm very, very proud. She saved my life through the almighty God."
Question: What is the best title for the passage?
Options: (A) A courageous and selfless nurse. (B) Give her a medal: Woman saves family members from Ebola. (C) A family survived Ebola with the help of government. (D) The dreadful disease Ebola.
[EX A]: B

[EX Q]: Article: Have you ever wondered when dogs first became "man's best friend" and the world's favourite pet? If you have then you're not alone. When and where dogs first began living side-side with humans are questions that have stirred hot debate among scientists. There are a few hard facts that all agree on. These include that dogs were once wolves and they were the first animal to be domesticated by humans. They came into lives some 15000 years ago, before the dawn of agriculture. Beyond that, there is little agreement. The earliest bones found that are unquestionable dogs and not wolves date from 14,000 years ago. However, 30,000-year-old skulls have been discovered in France and Belgium that are not pure wolf and some scientists think could be dogs. With such puzzling evidence, many scientists are now turning to DNA to find out when and where dogs were first domesticated. In one research project, tens of thousands of blood samples have been taken from street dogs around the world. The plan is to compare them with those of wolves. It's even possible to analyse DNA from ancient bones. Tiny pieces of the 30,000-year-old skulls mentioned earlier are currently being studied, and another DNA study has already shown that ancient dogs preserved in the Alaskan ice-fields evolved from Asian wolves, not American ones. Indeed, the ancient DNA may turn out to be more informative than the DNA of living dogs. Because dogs have accompanied humans around the world for thousands of years, their current distribution may tell us very little of their origins. This is why different groups of scientists believe that dogs variously originated in eastern Asia, Mongolia, Siberia, Europe or Africa. But why were the animals domesticated in the first place? The most recent theory is that dogs domesticated themselves, initially living in and around our ancient villages to eat any food thrown out. Today, this is a way of life still shared by three -quarters of a billion unowned dogs worldwide.
Question: Which is the only statement generally agreed on by scientists studying dogs?
Options: (A) They originally were used as farm animal (B) They evolved from wolves found in Europe (C) They helped the development of agriculture (D) They were the first animal to be kept as pets
[EX A]:
D