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: New research at Washington University School of Medicine in St. Louis shows that people who struggle with mood problems or addiction can safely quit smoking and that kicking the habit is associated with improved mental health. Cavazos-Rehg, an assistant professor of psychiatry, found that quitting or significantly cutting back on cigarette smoking was linked to improved mental health outcomes. Quitting altogether or reducing by half the number of cigarettes smoked daily was associated with lower risk for mood disorders like depression, as well as a lower likelihood of alcohol and drug problems. "We don't know if their mental health improves first and then they are more motivated to quit smoking or if quitting smoking leads to an improvement in mental health," Cavazos-Rehg said. "But either way, our findings show a strong link between quitting and a better psychiatric outlook." In addition, she believes the serious health risks associated with smoking make it important for doctors to work with their patients to quit, regardless of other psychiatric problems. "About half of all smokers die from related to smoking, so we need to remember that as complicated as it can be to treat mental health issues, smoking cigarettes also causes very serious illnesses that can lead to death," she explained. Cavazos-Rehg and her team analyzed questionnaires gathered as part of the National Epidemiologic Study on Alcohol and Related Conditions. In the early 2000s, just under 35,000 people were surveyed. As part of the study, they answered questions about drinking, smoking and mental health in two interviews conducted three years apart. The researchers focused on data from 4,800 daily smokers. Those who had addiction or other psychiatric problems at the time of the first survey were less likely to have those same problems three years later if they had quit smoking. And those who hadn't had psychiatric problems at the initial survey were less likely to develop those problems later if they already had quit. "We really need to spread the word and encourage doctors and patients to tackle these problems," Cavazos-Rehg said. "When a patient is ready to focus on other mental health issues, it may be an ideal time to address smoking cessation, too."
Question: What is the main idea of the passage?
Options: (A) Smoking was associated with alcohol and drug problems. (B) Quitting smoking may help to improve mental health. (C) Smoking can lead to cancer or other deadly problems. (D) Those who had mental problem are more motivated to quit smoking.
B

Article: In reflecting on the events of my life that have impacted me, I returned to the night of August 1, 2006. I found myself in a hall in New York City sitting by my mother, not at all tired, although we had flown the day before, and driven five hours to the city for "An Evening with Harry, Carrie and Garp," a charity event with readings by three authors. The excitement rushing through me kept me awake and thinking; I was standing and applauding a woman as she prepared to read. The Harry Potter series was my gateway to my academic adolescence. I was so fascinated by the magic world that my mother began taking me to academic conferences focused on the books. Since 2005, I have attended presentations about the Latin origin of terms and spells, the ancient tales, and the idea of magic. These books opened my eyes to the whole world, and to knowledge itself. They kept my brain working over the summers. More importantly, they helped me adopt the ideas useful in school and beyond, that there is always another way to do something, or to understand an issue. With uncertainty and doubt come creative ideas and new ways to look at problems that may result in new, different, faster and easier solutions. And all this came from a little "magic" from a book that many people see as a series for children. I also attended lectures about Ms. Rowling's ability to beautifully write the story, with every small detail connected to something else, for example, details in books by Jonathan Swift to Chaucer to Dickens and Austin. I learned that like all great books, Rowling's stories encouraged a connection across mind, body, and soul. Although the series has been criticized by those who believe it encourages bad behavior in children, I was able to hear discussions by those who claimed that these books teach wonderful messages if one gets its deeper meaning. It is my generation's shared text; all college freshmen are familiar with the stories, and that gives us a set of common beliefs and ideas that help us start to learn new things.
Question: What did the author do on the night of August 1, 2006?
Options: (A) He flew for a charity event. (B) He drove tiredly back home. (C) He listened to readings by some authors. (D) He enjoyed the excitement of driving.
C

Article: Students usually have two long holidays a year, but have you heard elephants have holidays? The Indian elephants from a temple are sent on a north-long holiday with massages and baths to relax. The 64 elephants will be fed with a lot of food, enough for them to put on 700~800 pounds. A temple veterinarian said that those Indian elephants would be treated after spending a month walking on roads, living on leaves and bananas and giving shows during lots of temple festivals. Their daily diet includes special rice and other special food, which are very _ and can make them healthy and strong. All of these are made by professional people. This treatment will also calm them down ahead of a busy work schedule in upcoming events later in the year where they are the main attractions. The special holiday has cost the temple aboutPS12,500, but extra money is ready for being used to treat the animals. Indians believe that doing something good to elephants can help them get wisdom and power. Having elephants is a traditional symbol of honor for temples across southern India. All temples, however, never buy their elephants. The elephants were donated by people.
Question: The Indian elephants can have a _ holiday.
Options: (A) day's (B) week's (C) month's (D) year's
C