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: Is it possible that the sinking of the Titanic was caused by a ghost? A plot of the story below is true ... but did it really happen quite like this? Our story begins not in the icy cold waters of the North Atlantic, but rather thousands of miles away in Egypt. It is here, perhaps, that we can find the start of the mystery of the Titanic, in the year 1910, in the great city of Cairo. One day, a famous professor of Egyptian history called Douglas Murray was staying in Cairo, when he was contacted by an American adventurer. The American had something unusual to offer Murray, something that was certain to thrill him: a beautiful ancient Egyptian mummy case, containing the mummy of an Egyptian queen. It was over 3,000 years old, but in beautiful condition -- gold, with bright paintings on it. Murray was delighted with both the object and the askingprice. He gave the man a cheque immediately. The cheque was never cashed. That evening the American adventurer died. For his part, Murray arranged to have the treasure sent back to Britain. However, it was not long before he learnt more about the beautiful mummy case: On the walls of the tomb in which it had been discovered, there were messages which warned of terrible consequences to anyone who broke into the tomb. Murray was disbelieving of these warnings until a few days later, when a gun he was holding exploded in his hand, shattering his arm. The arm had to be cut off. After the accident, Murray decided to return to his homeland. On the return journey, two of his companions died mysteriously, and two servants who had handled the mummy also passed away. The nowterrified Murray decided he would get rid of the _ case as soon as he arrived in London. A lady he knew named Janet Jones said she would like it, so he gave it to her. Shortly afterwards, Jones' mother died, and she herself caught a strange disease. She tried returning the mummy, but naturally Murray refused it. In the end, it was presented to the British Museum. Even in the museum, the mummy apparently continued to cause strange events. A museum photographer died shortly after taking pictures of the new exhibit, and a manager also died for no apparent reason. In the end, the British Museum decided to get rid of the mummy too. They sold it to a collector in New York. At the start of April 1912, arrangements for the transfer were complete, and the mummy began the journey to its new home. But the New Yorker never received the mummy or its case. For when the Titanic sank, one of the objects in its strongroom was the mummy case. Or so they say.
Question: According to the passage, where is the Egyptian mummy now?
Options: (A) At the British Museum. (B) In New York. (C) In Egypt. (D) Under the sea.
D

Article: A scientist working at her lab bench and a six-old baby playing with his food might seem to have little in common.After all,the scientist is engaged in serious research to uncover the very nature of the physical world,and the baby is,well, just playing...right?Perhaps,but some developmental psychologists have argued that this"play"is more like a scientific investigation than one might think. Take a closer look at the baby playing at the table.Each time the bowl of rice is pushed over the table edge,it falls in the ground---and, in the process, it belongs out important evidence about how physical objects interact ; bowls of rice do not flood in mid-sit, but require support to remain stable. It is likely that babies are not born knowing the basic fact of the universe; nor are they ever clearly taught it. Instead, babies may form an understanding of object support through repeated experiments and then build on this knowledge to learn even more about how objects interact. Though their ranges and tools differ, the baby's investigation and the scientist's experiment appear to share the same aim(to learn about the natural world ), overall approach (gathering direct evidence from the world), and logic (are my observations what I expected?). Some psychologists suggest that young children learn about more than just the physical world in this way---that they investigate human psychology and the rules of language using similar means. For example, it may only be through repeated experiments, evidence gathering, and finally overturning a theory, that a baby will come to accept the idea that other people can have different views and desires from what he or she has, for example, unlike the child , Mommy actually doesn't like Dove chocolate. Viewing childhood development as a scientific investigation throws on how children learn ,but it also offers an inspiring look at science and scientists. Why do young children and scientists seem to be so much alike? Psychologists have suggested that science as an effort ---the desire to explore, explain, and understand our world---is simply something that comes from our babyhood. Perhaps evolution provided human babies with curiosity and a natural drive to explain their worlds, and adult scientists simply make use of the same drive that served them as children. The same cognitive systems that make young children feel good about feel good about figuring something out may have been adopted by adult scientists. As some psychologists put it, "It is not that children are little scientists but that scientists are big children."
Question: According to some developmental psychologists,
Options: (A) a baby's play is nothing more than a game. (B) scientific research into babies; games is possible (C) the nature of babies' play has been thoroughly investigated (D) a baby's play is somehow similar to a scientist's experiment
D

Article: While most people consider that laughter is one of the nature's great treatments for a whole range of mental and physical diseases, it is still a serious scientific subject that researchers are trying to figure out. "Laughter is social." says Robert R. Provine, author of the book "Laughter: A Scientific Investigation", who has been studying laughter for decades. "Almost all people laugh 'ha-ha-ha' basically the same way. Whether you speak Mandarin, French or English, everyone will understand laughter. There is a pattern generator in our brain that produces this sound. Laughing is also a good way of communicating. Babies laugh long before they speak. No one teaches them how to laugh. They just do it. People may laugh at a prank on April Fools' day. But surprisingly, only 10 to 15 percent of laughter is the result of someone making a joke. Laughter is mostly about social responses rather than reaction to a joke. Deaf people laugh without hearing and people on cell phones laugh without seeing, which shows that laughter isn't dependent on a single sense but on social interactions. And laughter is not just a human thing. Chimps tickle each other and even laugh when another chimp pretends to tickle them. Jaak Panksepp studies rats that laugh when he tickles them. It turns out rats love to be tickled. They return again and again to the hands of researchers tickling them, Panksepp's video shows. By studying rats, scientists can figure out what's going on in the brain during laughter. It has been found that laughter in rats produces a chemical that acts as an antidepressant and anxiety-reducer. Scientists think the same thing probably happens in humans, too. This would give doctors a new chemical target in the brain in their effort to develop drugs that fight depression and anxiety in people. Even so, laughter itself has not been proved to be the best medicine, experts said. "No study has shown that laughter produces a direct health benefit," Provine said, "largely because it's hard to separate laughter from just feeling good."
Question: Why does the writer say "laughter is mostly about social responses rather than reaction to a joke"?
Options: (A) because people can communicate with each other by laughing. (B) because laughter is the same sound in all the human's languages. (C) because laughter is considered a basic language all people can learn. (D) because everyone can understand the meaning of the word laughter.
A