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: Coral reefs are not just beautiful to look at,but also very useful.They shelter nearly 25% of ocean life and provide food for billions of people.However, like many other species,this amazing ecosystem is in danger of dying out! There are two main reasons for the destruction--the rising carbon dioxide levels caused by global warming as well as human influences like bottom operation.While not much can be done about the former,the loss caused by the latter can be reduced. Bottom operation involves dropping nets to the ocean bed and then dragging them up when filled with fish.This action damaged the ocean floor,causing the coral branches to separate from the reefs.While that is very discouraging,the good news is that if these branches are found quickly,they can be saved.At present,that work is being performed by volunteer divers. But the method has only limited success because they cannot stay long underwater, nor reach depths of over 200 meters where some of the deep-sea coral grows. However,this is not the case for Coralbots--the robots that can constantly seek out broken branches.A team of 'coral bots',each individually working to simple rules will piece together damaged bits of coral, allowing them to regrow. They are programmed to be able to distinguish between other things and the coral.The robots work together in groups,similar to bees.If one coralbot is damaged, then the others will still be able to complete the task. Dr Lea-Anne Henry said:"The project of using coralbots offers us the possibility to restore the function of reefs.It is in the final stage of testing.Once ready, the researchers hope to build hundreds of _ and use them effectively in the waters off Scotland and then hopefully in the oceans across the world."
Question: Which of the following is a cause of the danger that coral reefs are facing?
Options: (A) The appearance of new creatures. (B) The seriously polluted sea water. (C) The activities of volunteer divers. (D) Human activities like bottom operation.
Asnwer: D
[EX A]: Yes

[EX Q]: Article: Being considered a leader in our society is indeed of high praise.Leadership means power, commands respect and, most important, encourages achievement.Unlike vitamin C, leadership skills can't be easily swallowed down.They must be carefully cultivated. Different from popular belief, most good leaders are made, not born.They learn their skills in their everyday lives.But which do they develop? How do they (and how can you) get others to follow? Always give credit.Many leaders note that the most efficient way to get a good performance from others is to treat them like heroes.Giving public credit to someone who has earned it is the best leadership technique in the world.It is also an act of generosity that's never forgotten. Giving credit is more effective than even the most constructive criticism , which often hurts rather than helps.Kenneth Blanchard, the author of The One-Minute Manager, agrees. "Catch people doing something right!" he says.Then tell everyone about it. Take informed risks." The best leaders know that taking a risk is not a thoughtless exercise," says management adviser Marilyn Machlowitz."Sky divers don't go up in an airplane without checking the parachutes beforehand." Because the idea of risk also carries with it the possibility of failure, many of us usually wait for others to take charge.But if you want to be a leader, you must learn to fail - and not die a thousand deaths.Pick yourself up and start all over again. Encourage enthusiasm ."When people understand the importance of work, they lend their mental strengths," says Lee Ducat.But when they get excited about the work, all their energy gets poured into the job.That's a great force! Is this the best way to create excitement? Be enthusiastic your-self - You will be followed by everyone.
Question: The part Always give credit tells us that a leader should _ .
Options: (A) give helpful criticism (B) regard others as real heroes (C) praise people for their good performances (D) praise everyone
Asnwer: C
[EX A]: Yes

[EX Q]: Article: Cole Bettles had been rejected by a number of universities when he received an e-mail from the University of California, San Diego, last month, congratulating him on his admission and inviting him to tour the campus. His mother booked a hotel in San Diego, and the 18-year-old Ojai high school senior arranged for his grandfather, uncle and other family members to meet them at the campus for lunch during the Saturday tour. "They were like 'Oh my God, that's so awesome ', " Bettles said. Right before he got in bed, he checked his e-mail one last time and found another message saying the school had made a mistake and his application had been denied. In fact, all 28, 000 students turned away from UC San Diego, in one of the toughest college entrance seasons on record, had received the same incorrect message. The students' hopes had been raised and then dashed in a cruel twist that shows the danger of instant communications in the Internet age. UCSD admissions director Mae Brown called it an "administrative error" but refused to say who had made the mistake, or if those responsible would be disciplined . The e-mail, which began, "We're thrilled that you've been admitted to UC San Diego, and we're showcasing our beautiful campus on Admit Day, " was sent to the full 46, 000 students who had applied, instead of just the 18, 000 who got in, Brown said. The error was discovered almost immediately by her staff, who sent an apology within hours. "It was really thrilling for a few hours; now he's crushed , " said Cole's mother, Tracy Bettles. "It's really tough on them." The admissions director said she was in the office on Monday until midnight answering e-mails and phone calls from disappointed students and their parents. She said she took full responsibility for the error. "We accessed the wrong database. We recognize the incredible pain receiving this false encouragement caused. It was not our intent."
Question: How many students received an admission e-mail from the University of California, San Diego (UCSD)?
Options: (A) 18, 000 (B) 28, 000 (C) 46, 000 (D) 18
Asnwer: C
[EX A]:
Yes