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: Planning for the weather No matter what time of year you vacation in San Diego, be sure to bring a light jacket or sweater and bring shorts. During our summer months, we have warm days but cool evenings, especially if you are near the ocean. Those cool evenings can feel cold and fresh if you are visiting from someplace that is typically hot and damp all summer. And during our winter months, we can have days that reach 80 degrees Fahrenheit (27 degrees Celsius). In fact, our winter months are the sunniest months of the year along the San Diego coast. How to get around San Diego Deciding whether you need to rent a car for your visit to San Diego? If you are planning to visit attractions in and around downtown San Diego, including SeaWorld, San Diego Zoo, Balboa Park, Old Town, Coronado, and the Gaslamp Quarter, all of these attractions can be readily accessed by public transportation assuming the hotel or place you are staying in is close to a bus or trolley stop. Tour guests comment on how easy it is to use our transportation system, how clean it is, and the low cost for a one-day or multi-day pass that works on both buses and trolleys. However, if you are going to visit attractions further away from downtown San Diego such as the Safari Park or Legoland or if you want to visit our local mountains or desert, we recommend a car rental. How to make time for all the things to do Our final tip for now is to plan ahead. Unlike most cities where there may be a few concentrated tourist areas and it's easy to find things as you go, San Diego offers hundreds of attractions and guests tell us they are overwhelmed and certainly didn't plan enough time once they find how much there is to do in San Diego. Many guests visit San Diego as part of an extended trip that includes San Francisco and Los Angeles. They often plan fewer days in San Diego because they assume it is the smallest city with the least to offer only to say they wished they had planned more days in San Diego because it offers more things to do in a much more relaxing environment. By planning ahead you can also get discounts for various attractions. For example you can save a lot of money at SeaWorld if you buy your tickets in advance online, at a visitor center or through your hotel. Another reason to plan ahead is that some attractions close early or get sold out since San Diego is a big destination for major conventions and big companies bringing in employees from around the world for special events in beautiful, sunny San Diego.
Question: Which of the following is the best title of the passage?
Options: (A) Brief Introduction to San Diego (B) Tips for Visiting San Diego (C) Attractions in and around San Diego (D) Reasons for Visiting San Diego
Output:
B