In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

[EX Q]: Article: DIY sailor Owen Warboys has finally launched his homemade boat -- after spending nearly 30 years building it in his mum's garden. Owen, 66, a retired engineer from Hordle, New Milton, Hants, first started work on the 40ft--long boat in 1982 because he could not afford to buy his own. He told mum Edith that it would only take five years but after suffering "a few problems" it lasted nearly three decades. When he finally finished, he was left with the head-scratching task of getting the 18-tonne boat out of the back garden. After some time he found a way. A huge crane was brought in to carefully raise it 40ft in the air over his mother's house and onto a lorry. It was then driven to the seaside and, to Owen's delight, it floated and showed no signs of leaking when lowered into the water. Now, 28 years after he first started, Owen is at last preparing to set sail in his beloved boat, Wight Dolphin, with his long-suffering wife Anne. Owen said, "I am so relieved that it's finished. There were times when I thought it would never end but I'm the sort of person who likes to finish something once I've started." At first he persuaded his mum to let him do it in her garden and started taking in sheets of steel and pieces of wood. "My mother was happy for me to build it at her house but only bacause I told her it would only take five years."
Question: Why did Owen decide to make his own boat by himself?
Options: (A) He wanted to kill time after his retirement (B) He wished to set a new world record (C) He didn't have enough money to buy a boat (D) He had a hobby of making things by hand
Asnwer: C
[EX A]: Yes

[EX Q]: Article: It is 4 o'clock in the early morning. Everything but the computing room on the campus of the university appears as quiet and misty as the mysterious hell. In the computing room, 30 students with sleepy eyes, sit still at their desk, beating the dirty and worn keys. Staring at the colorful screen, they tap continuously for hours. For the other parts in the world, it might be in the middle of the night, nevertheless here time represents nothing. It is an entirely enclosed field. These young computer "hackers" are tracing a sort of stimulus , a drive so exciting and absorbing that it ignores nearly anything else in their lives and becomes the focus of their being. They are addicted computer programmers. Some of these students have been glued to the console for no less than twenty hours even with no break for meals or rest. Some have been sleeping on sofas and chairs in the computing room, trying to struggle for a few moments' rest but hating to get too far away from their addicted machines. It is not necessary for most of these students to be at the computing room in the middle of the night. What they are working belong to no assignments. They remain there because they desire to be -- they can not resist the attraction of the computers. Furthermore, they are in groups instead of being alone. There are hackers at computing rooms all over the country. In the unimaginable way, they focus on nothing but computer. They escape from schooling and live beyond friendship; they might have difficulty being employed, choosing to travel from one computing room to another. They may even give up personal health. "There is one hacker in my memory. We actually had to lift him away from his chair to feed him and arrange him to rest and sleep. We truly worried about his health," says a computing science professor at California University. Professors of computer science are nowadays paying more attention to this hacker phenomenon and are on the watch for future hackers and more and more severe computer addicts. They believe firmly that hackers are not simply resulted from the close relationship with a machine. It is the result of social relationship with the attractive thinking machines, which are becoming nearly universal.
Question: We can learn from the passage that those at the computing room in the middle of the night are _ .
Options: (A) students working on a program (B) students using computers to amuse themselves (C) hard-working computer science majors (D) students deeply fascinated by the computer
Asnwer: A
[EX A]: No

[EX Q]: Article: Nowadays more and more people are talking about genetically modified foods ( GM foods). GM foods develop from genetically modified organisms , which have had specific changes introduced into their DNA by genetic engineering techniques. These techniques are much more precise where an organism is exposed to chemicals to create a nonspecific but stable change. For many people, the hightech production raises all kinds of environmental, ethical, health and safety problems. Particularly in countries with long farming traditions, the idea seems against nature. In fact, GM foods are already very much a part of our lives. They were first put on the market in 1996. A third of the corn and more than half the cotton grown in the U. S. last year was the product of biotechnology, according to the Department of Agriculture. More than 65 million acres of genetically modified crops will be planted in the US this year. _ . However, like any new product entering the food chain, GM foods must be subjected to careful testing. In wealthy countries, the debate about biotech is not so fierce by the fact that they have a large number of foods to choose from, and a supply that goes beyond the needs. In developing countries desperate to feed fastgrowing and underfed populations, the matter is simpler and much more urgent: do the benefits of biotech outweigh the risks? The statistics on population growth and hunger are disturbing. Last year the world's population reached 6 billion. The UN states that nearly 800 million people around the world are unhealthy. About 400 million women of childbearing age don' t have enough iron, which means their babies are exposed to various birth defeats.As many as 100 million children suffer from vitamin A deficiency, a leading cause of blindness. How can biotech help? Genetic engineering is widely used to produce plants and animals with better nutritional values. Biotechnologists have developed genetically modified rice and they are working on other kinds of nutritionally improved crops. Biotech can also improve farming productivity in places where food shortages are caused by crop damage attributable to drought, poor soil and crop viruses.
Question: The passage mainly talks about _ .
Options: (A) the world's food problem (B) the development in biotech (C) the genetically modified foods (D) the way to solve food shortages
Asnwer: C
[EX A]:
Yes