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.

Example input: Article: Homework can put you in a bad mood , 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
Example output: B
Example explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment. So, B is the correct answer.
Q: Article: In August 2015, President Obama announced that North America's highest mountain, Mount McKinley, would be renamed. Its new moniker , Denali, was actually its original Aleut name, meaning "the high one". The previous name, on the other hand, only dates back to 1896--the year when it was named in honour of William McKinley(1843--1901), who was shortly to become President of the United States. Denali is of course not the only mountain with an interesting linguistic history, so let's travel to Asia, and across Europe, to explore the naming of those continents' most famous peaks and mountain ranges. The Nepalese name Himalaya comes from a Sanskrit word meaning "Abode of Snow", from hima for "snow" and alaya for "abode". In Buddhist sources, Himalaya is known by various names such as Himava and Himavanta. In 1856, Mount Everest was named after Sir George Everest (1790--1866), who was the superintendent of the Trigonometrical Survey of India. Everest himself was initially displeased by the naming, since he feared that local inhabitants might not be able to pronounce it. K2 stands for Karakoram 2, because it was the second peak to be surveyed in the Trigonometrical Survey in the Karakoram system. It was also formerly known as Mount Godwin Austen after Col. H. H. Godwin Austen, who first surveyed it. Another alternative name for the mountain is Chhogori. Annapurna is a household Goddess for Hindus, who guarantees to her worshippers that food will not fail. The name derives from a Sanskrit word meaning "one who gives nourishment". The Matterhorn's name derives from the name of the nearby town of Zermatt, the second element of which is apparently Matte "meadow", and Horn, "horn". Horn is not an unusual element in German names of mountains with jutting peaks. The mountain is called Mont Cervin in French and Monte Cervino in Italian, from the Italian adjective cervino "deer-like", which conjures up a deer's antlers. Ben Nevis is the Anglicized form of the Scottish Gaelic name Beinn Nibheis, which means"Mountain by the(River)Nevis". The name of the river apparently derives from a Celtic root for "water".
Question: How many continents' mountains are mentioned in the passage?
Options: (A) 2 (B) 3 (C) 4 (D) 5
A:
B