input question: Write a multi-choice question for the following article, with the given choices and answer: Article: For nearly a century before there was such a thing as a space program,a view of space was possible.People could see full views of the Moon,explore Mars ,and study the outer space beauty.All of this was made possible by a small group of artist-astronomers who worked to show people how other worlds in space might look. Lucien Rudaux,a French artist,was the first to use his artistic ability and his knowledge of astronomy in art.His paintings show a mixture of skilled observations,brilliant imagination and careful attention.As a result,many of his works have come surprisingly close to actual conditions on distant planets.His painting of Mars included moonlike craters that were first photographed by the astronauts in 1965.His 1930 painting of a dust storm looks remarkably like a photograph of a storm taken by the astronauts in 1976. The artist-astronomers,including Rudaux,made people interested in outer space by painting what turned out to be exact portraits of the planets. Options: A exploring the planets B studying paintings C painting the planets D producing spaceships Answer: C painting the planets Question:???
output answer: According to the passage,artist-astronomers spent their lives _ .

Write a multi-choice question for the following article, with the given choices and answer: Article: I had an experience some years ago, which taught me something about the ways in which people make a bad situation worse by blaming themselves.One January, I had to hold two funerals on successive days for two elderly women in my community.Both had died "full of years", as the Bible would say.Their homes happened to be near each other, so I paid condolence calls on the two families on the same afternoon. At the first home, the son of the deceased woman said to me, "If only I had sent my mother to Florida and gotten her out of this cold and snow, she would be alive today.It's my fault that she died." At the second home, the son of the other deceased woman said, "If only I hadn't insisted on my mother's going to Florida, she would be alive today.That long airplane ride, the sudden change of climate, was more than she could take.It's my fault that she's dead." You see that any time there is a death, the survivors will feel guilty.Because the course of action they took turned out badly, they believe that the opposite course -- keeping Mother at home, putting off the operation -- would have turned out better.After all, how could it have turned out any worse? There seem to be two elements involved in our willingness to feel guilty. _ .That leads us to find patterns and connections both where they really exist and where they exist only in our minds. The second element is the view that we are the cause of what happens, especially the bad things that happen.It seems to be a short step from believing that every event has a cause to believing that every disaster is our fault.The roots of this feeling may lie in our childhood. A baby comes to think that the world exists to meet his needs, and that he makes everything happen in it.He wakes up in the morning and summons the rest of the world to its tasks.He cries, and someone comes to attend to him.When he is hungry, people feed him, and when he is wet, people change him.Very often, we do not completely outgrow that childish view that our wishes cause things to happen. Options: A he wanted to comfort the two families B he was an official from the community C he had great pity for the deceased D he was priest of the local church Answer: D he was priest of the local church Question:
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Answer: The author had to hold the two women's funerals probably because _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: For decades, public health officials have puzzled over a surprising fact about HIV: Only about 10-20 percent of infants who are breastfed by infected mothers catch the virus. Tests show, though, that HIV is indeed present in breast milk, so these children are exposed to the virus multiple times daily for the first several months of their lives. Now, a group of scientists and doctors from Duke University has figured out why these babies don't get infected. Human breast milk naturally contains a protein called Tenascin C that neutralizes HIV and, in most cases, prevents it from being passed from mother to child. Eventually, they say, the protein could potentially be valuable as an HIV-fighting tool for both infants and adults that are either HIV-positive or at risk of contracting the infection. The research, published in Proceedings of the National Academy of Sciences, was inspired by previous work by other researchers showing that, both in tissue cultures and live mice, breast milk from HIV-negativemothers was naturally endowed with HIV-fighting properties. Scientists suggested that a few different proteins in the milk could potentially be responsible, but no one knew which one. As part of the study, the researchers divided breast milk into smaller fractions made up of specific proteins via a number of filters -- separating the proteins by size, electrical charge and other characteristics--and tested which of these fractions, when added to a tissue culture, prevented the cells from being infected by HIV. Eventually, they found that one particular protein was present in all the HIV-resistant fractions but in none of the others: Tenascin C. Tenascin C works by blocking a key protein on HIV's envelope that normally ties up to a receptor on a T cell's membrane called CCR5. In doing so, Tenascin C prevents HIV from mixing with the T cell and injecting its RNA inside. Still, the researchers say that other natural elements in milk might play a role in fighting HIV as well. "It's clearly not the whole story,... Options: A It has become an effective tool in fighting HIV. B It was first found by Permar and her research group. C It can prevent transmission in a live animal effectively. D It can sometimes prevent mother-to-child transmission of HIV. Answer: D It can sometimes prevent mother-to-child transmission of HIV. Question:
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The answer is:
Which of the following about Tenascin C is true?