Given the task definition, example input & output, solve the new input case.
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: 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
Output: B
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.

New input case for you: Article: What is a six-letter word that immediately comes to mind when you need some information on the Internet? You probably thought of Google. But Google wasn't always the name of the famous search engine. In fact, the original name was BackRub! BackRub was the name two graduate students gave to the new search engine they developed in 1996. They called it BackRub because the engine used backlinks to measure the popularity of Web sites. Later, they wanted a better name -- a name that suggests huge quantities of data. They thought of the word googol. (A googol is a number followed by 100 zeros.) When they checked the Internet registry of names to see if googol was already taken, one of the students misspelled the word by mistake, and that's how Google was born. Google is just one example of a name change in the business world. Many other companies have decided to change their names or the names of their products. Here are some more examples: Jerry Yang and David Filo, two young computer specialists, developed a guide to Internet content in 1994. They called it "Jerry and David's Guide to World Wide Web." But they soon realized that this wasn't a very catchy name, so they searched through a dictionary and found a better one: "Yahoo." Sometimes companies change their names because of the popularity of one of their products. In 1962, a young runner named Phil Knight started a company called Blue Ribbon Sports. In 1971, Knight decided to design and manufacture his own brand of shoes. He named the shoes after the Greek goddess of victory -- Nike. Nike shoes became so well known that Knight changed the name of the whole company to Nike.
Question: According to the text, Google _ .
Options: (A) has been famous since 1996 (B) is a result of a spelling mistake (C) means a number followed by 100 zeros (D) is the original name of the search engine
Output:
B