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: When I first got an e-mail account ten years ago, I received communications only from family, friends, and colleagues. Now it seems that every time I check my e-mail,I have an endless series of advertisements and other _ that do not interest me at all. If we want e-mail to continue to be useful, we need specific laws that make spamming a crime. If lawmakers do not do something soon to prohibit spam, the problem will certainly get much worse. Computer programs allow spammers to send hundreds of millions of e-mails almost instantly. As more and more advertisers turn to spam to sell their products,individual e-mail boxes are often flooded with spam e-mails. Would people continue to use e-mail if they had to deal with an annoying amount of spam each time? This problem is troubling individuals and companies as well. Many spam e-mails contain computer viruses that can shut down the entire network of a company. Companies rely on e-mail for their employees to communicate with each other. Spam frequently causes failures in their local communications networks, and their employees are thus unable to communicate effectively. Such a situation results in a loss of productivity and requires companies to repeatedly repair their networks. These computer problems raise production costs of companies, which are, in the end, passed on to the consumer. For these reasons, I believe that lawmakers need to legislate against spare. Spammers should be fined, and perhaps sent to prison if they continue to disturb people. E-mail is a tool which helps people all over the world to communicate conveniently, but spam is destroying this convenience.
Question: According to the text, what is the major cause of the flooding spam?
Options: (A) Companies rely on e-mail for communications. (B) More people in the world communicate by e-mail. (C) Many computer viruses contain spam e-mail. (D) More advertisers begin to promote sales through spam.
Example Output: D

Example Input: Article: When it comes to human resources, hiring highly-skilled staff is not usually enough for a company to function successfully. Besides the knowledge in their particular fields, employees must always have additional skills-----those of co-operation. In the case that work tasks can only be carried out by communicating with people, accepting common decisions, solving problems, sharing information and helping one another, teamwork skills are important. While some jobs may require talent, the ability to work as a team is learned. There are no complicated formulas ; you don't need to have any special qualities or exceptional mental abilities. Individuals can be effective as a team if they have developed certain behaviors or habits of communication. Many companies, clubs and organizations use team building activities. Team building activities may include a number of teamwork elements. They are aimed at encouraging active participation in task accomplishment while all members have their roles as individuals and are able to co-operate towards a common goal as a team. Many team building activities focus on problem solving and discussing team issues; thus argument as a way to common consensus is encouraged. Team building activities often involve recognition and identification of team member skills, talents, knowledge, and experiences which allow the team members to learn more about each other and fully utilize those skills where appropriate . Many team activities are focused on developing keys to trust during challenging times.
Question: In the author's opinion, which of the following is important for a company to be successful?
Options: (A) Specialized knowledge. (B) Highly-skilled staff. (C) Exceptional talent. (D) Teamwork skills.
Example Output: D

Example Input: Article: As a volunteer, you will discover the unique opportunity of visiting the real world beyond the tourist window and became immersed in the culture you visit. For most travelers, this time spent working on meaningful projects, and getting to know the local area and its people, is often cited as their most memorable, enjoyable and fulfilling life experience. Who can volunteer? Kaya Volunteers are 18-80 years old people with an adventurous spirit. Whether you have time for a 2-week trip or a 6-month break, travelling on your own, with a group or with your family, or you are a student, taking a break from your job, or have even retired, they will find a project that can use your help. Countries where you can volunteer: Asia-Pacific (Australia, India, Indonesia, Nepal, New Zealand, the Philippines, Thailand, Vietnam.) Africa (Botswana,Ghana,Kenya,Mozambique,South Africa,Zambia,Zimbabwe) Latin America (Belize,Bolivia,Brazil,Costa Rica,Ecuador,Peru) What type of projects can you do? Kaya's Project advisors work with you to decide which project is best for you and what type of work you would like to do. you can work in the following fields: Environmental preservation- From the Ecuadorian rain forest to the jungles of Thailand, repair the damage done to some of the most beautiful and diverse places on earth. Work with children- They have over 40 projects working with children across the world in orphanages, schools and shelters for the abused, disabled and disadvantaged. Sports - Through sports, their projects that can provide opportunities for health education and the development of life skills, such as teamwork, communication, discipline and self- confidence. Education - From English teaching to education programs for special needs and minority groups, give greater opportunity to the disadvantaged through education. All projects include airport pick-ups and drop-offs, accommodation, orientation and 24-hour support. Many of their placements also include all meals and some language classes so that you can get even more involved.
Question: The author wrote the passage for the purpose of _ .
Options: (A) explaining different projects for volunteers (B) calling in volunteers for sightseeing projects (C) showing us the advantages of volunteers (D) encouraging us to do some voluntary work.
Example Output:
D