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: Elephants and people are in competition for space. In much of Africa, elephants are now put in national parks. Elephants suffered a serious and steady decrease in numbers in the 1970s. This was the same time when scientists were beginning to learn a great deal about elephants and their behavior. Studies through the 1980s and into the 1990s showed a lot about their sounds and methods of communication. In Kenya alone, in the 1970s and 1980s, the elephant population decreased from 170,000 to 25,000. The sharp drop in numbers was the result of poachers illegally killing elephants for their ivory. The price of ivory went from $3 a pound to $50 to $100 a pound. Africa became very attractive to poachers. Bull elephants carried the largest tusks , so they were more often killed. With males gone and older females killed by poachers as well, there were many young elephants unable to benefit from the wisdom of the older females and matriarchs, who lead the herds. Kenya took a stand, international trade in ivory was officially forbidden, and $3,000,000 worth of confiscated ivory was burned in Kenya. The following year, only 50 elephants were lost to poachers in Kenya instead of 3,000. But Kenya has the fastest growing human population in the world. People throughout Africa won't tolerate elephants eating their crops and destroying their livelihoods. In South Africa, elephants live behind the fences of national parks. In some parts of Africa, big-game hunters pay a lot of money to hunt elephants. This keeps their numbers down, and the money goes toward conservation. In Kenya, there were some attempts at birth control to keep the elephant population at manageable numbers to reduce conflicts with people. Faced with a growing human population, elephants are losing the battle for space. It's unlikely, though, that they will become extinct. They will live in natural parks that bring tourists to Africa as well as India and other parts of Asia. The money from tourism will help elephants to survive.
Question: Bull elephants were at higher risk of being killed because _ .
Options: (A) they were the leaders of the herds (B) they possessed bigger ivory (C) they were of smaller size (D) they ran slowly
Example Output: B

Example Input: Article: A euphemism (from the Greek words eu--well and pheme--speak) is a word or expression that is used when people want to find a polite or less direct way of talking about difficult or embarrassing topics like death or the bodily functions.Most people,for example,would find it very difficult to say in plain language that they have arranged for their sick old dog to be killed.They would soften the pain by saying:We had Ruby put down or We had Ruby put to sleep.Many people prefer to call someone plain than ugly,or cuddly rather than fat. Euphemisms are an important part of every language,but it seems that English has an evergrowing number of them.The nonnative speaker not only has to make sense of the euphemisms he hears,he also has to learn which euphemisms are appropriate in any particular situation.He might be aware that his American friend needs to use the toilet when she asks where the bathroom (or restroom,or comfort station) is,but he is less likely to guess that his English friend has the same need when he says he has to see a man about a dog.He might have learned,for example,that in the family way is a euphemism for pregnant.If,however,he says to his boss,"Congratulations!I hear your wife is in the family way," he would be using an expression that is too familiar for the circumstances. Schools are full of euphemisms.At Frankfurt International School,for example,the special lessons given to students who are having difficulties in their school subjects are called Study Center (in the middle school) and Academic Workshop (in the high school).Teachers rightly do not want to upset students or parents by being too frank or straightforward,and usually choose a softer word or expression to convey the same message.
Question: According to the passage,people use euphemisms in order to _ .
Options: (A) make themselves understood (B) avoid embarrassment (C) to sound straightforward (D) attract attention
Example Output: B

Example Input: Article: Body language is the quietest, most secret and most powerful language of all. It is said that our body movements communicate about 50% of what we really mean while words themselves only do 7%. So while your mouth is closed, just it is your body language that is saying. When it comes to body language at the office, you may be making some big mistakes that could cause you trouble. The following are some tips on what you should not do when using body language at your office. Don't touch your co-workers, even if it's on the back of the arm or shoulder. Many of your co-workers are not comfortable with any body contact with others. Be careful not to touch everyone at your office. Don't avoid eye contact. Eyes can speak. Lack of eye contact means cheat, and it can also point to no safety or lack of confidence. Trust and confidence are things you will communicate to the other person if you hold eye contact 50% of the time. Don't have a bad handshake. You're going to show your kindness at once with a firm palm to palm handshake. Showing the palms of your hands is an _ gesture as it shows that you have a peaceful purpose. It means acceptance, and that you're open to new ideas. Be careful of the dead fish handshake. Don't lean your head while listening to others. When listening to others, you should listen to him or her carefully with your head straight. For women especially, you think you are expressing interest by leaning your head when you are listening to others, but you actually come across as if you don't understand what's going on.
Question: It can be known from the passage that _ .
Options: (A) The stronger you shake hands with others the better. (B) Leaning your head when listening expresses interest. (C) Leaning back and forward shows you are thoughtful. (D) Eye contact is very important in communications.
Example Output:
D