You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay.
Question: Researchers did experiments on kids in order to find out _ .
Options: (A) how they really feel when they are learning (B) whether mood affects their learning ability (C) what methods are easy for kids to learn (D) the relationship between sadness and happiness
Answer: B
Solution: Yes
Why? It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment. Hence, B is the correct answer and output is Yes.

New input: Article: Visiting animals in their natural homes may sound like a great idea that helps to save them, but is it ? Researchers writing in Trends in Ecology & Evolution on Oct9 said that the interactions between wild animals and friendly eco-tourists who want to take their pictures may put animals at greater risk of being eaten. It is clear that many people visit protected areas every year. "Recent data showed that protected areas around the globe have 8 billion visitors per year; that's like each human on Earth visited a protected area once a year, and then some!"said Dainel Blumstein of the University of California, Los Anglels. "This amount of nature tourism and eco-tourism can be added to the long list of ways in which humans cause fast environmental change. The basic idea of the report the report is that humans change the ways animals act and those changes might affect other parts of their lives, according to Science Daily. Those changes in behavior and activity may put animals at risk. "When animals spend time in 'harmless' ways with humans, they may let down their guard," Blumstein said. As animals get used to feeling comfortable with humans, they may become braver in other situations, he says . "If this bravery continues when they meet real predators , then they will die more often when they meet them." Eco-tourism is in some ways similar to making animals live in human homes or in cities. In all three cases, regular interactions between people and animals tame. Evidence has shown that silver foxes that live with people become more laid-back and less fearful; this results from evolutionary changes but also from spending time with humans. Simply put , as Blumstein asked in the Scientific American magazine:"Does eco-tourism make animals _ ?" And that's not all - humans can also scare away natural predators , creating the so-called "human shield effect" and a safe environment for smaller animals that might make them braver, too. When humans are around, for example, vervet monkeys don't see as many leopards trying to eat them. Blumstein says they hope to do more research into humans' interactions with wildlife. Scientists will "now have to understand better how different species and species in different situations react to humans and when humans might put them at risk.
Question: The main focus of report in Trends in Ecology & Evolution was the idea that _ .
Options: (A) eco-tourism cause damage to the natural homes of wildlife. (B) it is easy for eco-tourists to build up trust with wide animals. (C) the changes brought by eco-tourism may be harmful. (D) protected areas around the world are overloaded with tourists.
Asnwer: B
Solution:
No