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.

Article: Testing new drugs for safety and effectiveness is a costly process in the United States. It also can take:lot of time. Some scientists are now designing silicon computer chips that act like human organs. The scientists think they have found a way to make the process faster and more economical. The silicon computer chips are smaller than a child's hand. Each one has living cells that act and react like a human organ. The chips are being created as part of a program to test the safety of drug compounds. It is called the Tissue Chip for Drug Screening Program. It is a project of the US National Center for Advancing Tmnslational Sciences, or NCATS. Danilo Tagle is the center's Associate Director. He says a three-dimensional computer chip can be designed to act like a human lung. Some computer chips contain very small models of the human digestive system. They copy the real function or duties of the human stomach and intestine , moving when breaking down food. Drugs are added to the tiny organs for testing through instruments known as micro-tubes. Experiments with the tissue chips have produced more detailed information than tests using animal or cell models. NCATS just announced$17 million in grants to develop an entire human organ system over the next three years.
Question: Why are scientists designing silicon computer chips acting like human organs?
Options: (A) To treat the patients whose body organs don't work well. (B) To examine the health condition of human organs. (C) To make testing new drugs faster and cheaper. (D) .To further study the function of human organs.
C

Article: What would life be like without rich, creamy, mouthwatering, melt-in-your-mouth chocolate? Life would be bitter for most Americans. They spend about $13 billion a year buying all sorts of chocolate treats. However, for the African children who toil under slavelike conditions on cacao plantations, life is not sweet. The cacao bean is the main ingredient in the chocolate. According to a 2002 survey by the International Institute of Tropical Agriculture and the US Agency for International Development, about 284,000 children work in dangerous conditions on cacao farms in western Africa. More than half those children are younger than 14. Many were sold into forced labor to work 12 hours or more a day on the cacao plantations. A number of international organizations, including several African governments, recently began a program to eliminate child labor on cacao plantations. Under the program, government officials will remove children from abusive working situations while teaching farmers about child labor issues. The program will also make borrowing money easier for cacao farmers. Officials hope farmers will use the money to invest in their farms and hire paid laborers.
Question: The cacao bean is the main ingredient in _ .
Options: (A) treats (B) coffee (C) chocolate (D) cigarettes
C

Article: Betty is not traditional American beauty. She is unfashionable, has thick red glasses, untidy hair and large metal braces on her teeth. But this hasn't stopped her from becoming one of American's favorite TV characters. So how did she manage to do it? The answer is that charm can be more attractive than beauty. Betty is the main character in a TV show Ugly Betty. The show is about her life as a n office worker at a fashion magazine in New York. The TV show has just started. Betty has many exciting experiences and romantic stories. Betty is often looked down on and laughed at by the people around. But she manages to do better than others with her hard work, charm and wisdom. The show tells us about how a girl goes from an ugly young duck into a beautiful swan. Though you may know the ending of the show from the beginning and the story is familiar to many of us, it has still been a big success in the USA. It has attracted a large number of viewers and won two Golden Globes awards, one of the highest honors for a television program in the USA." I think you can see a bit of Betty in all of us, and I mean men as well, because it's about the underdog ",says Ashley Jensen, who plays one of the characters on the show. The program is so popular because of the performance of the 23-year-old actress America Ferrera who plays the role of Betty. She brings the character alive on the screen.
Question: Betty is popular because of _ .
Options: (A) her clothes (B) her charm (C) her personality (D) her appearance
B