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.

Ex Input:
Article: As we neared the last days of my mom's life, I wanted to understand what she was feeling and seeing. The day before she took her last breath I decided to ask her. First I wanted to make sure she could comprehend what I was saying. I told her I loved her, and she raised her eyebrows in acknowledgment. Then I shared a funny story about a conversation my sister and I had. The corners of her mouth turned up in a smile. I could tell that she was taking in every word. And then I went for it. "Mom, can I ask you a serious question?" She turned her head and opened her eyes fully. I could tell she wanted to grasp every word that came out of my mouth. "Mom, do you see any of our dead relatives in the room? Do you see your dad?" she shook her head. Do you see your mom?" She shook her head again. "Do you see dad?" Her response was quite different this time. She began nodding her head. "Is he here in this room right now?" She nodded. "Can he see me?" She nodded again. Then she tried to communicate with words, but she couldn't get the words out. The next morning she died peacefully.. A few weeks ago, I was wondering why I haven't had many dreams of my mom since she died. That night I had one of the clearest dreams I've had for a long time. Mom was dressed beautifully. She stared at me with a huge smile. Her eyes were bright and full of life. She was happier than I had seen her in years. And she was younger. We didn't exchange any words, but it was clear that she was happy and free. I woke up with joy in my heart.
Question: What was the author's mother like on the last day before her death?
Options: (A) She had no sense of hearing at all. (B) She couldn't move except her eyes. (C) She could still speak in an unclear voice. (D) She could communicate with her body language.

Ex Output:
D

Ex Input:
Article: Studying abroad will shape you in various ways. You will learn things you never would have if you had stayed home. When you are young and unattached, you should travel. Besides, you just might save a large sum of money. College is expensive in the United States. It's cheap or free in other countries even for foreigners, so why not get out of here and come back smarter? More and more American students are currently studying at German colleges. That number has increased 20% over the last three years. Living costs are about $7,000 a year, which is even lower than in other European countries. Germany encourages international students. They create a multicultural landscape that benefits German students as well. According to a new report, Germany is home to six of the world's 100 best universities. These schools offer around 900 degrees completely in English and many German students speak the language. You could be part of Finland's excellent education system. The Finns charge no tuition and offer a number of courses purely in English. They would be happy for you to add flavor to their school scene. Cost of living there is high. Be prepared for frosty winters that far north, but you will get that sweet midnight sun in the summer. Many other European nations offer cheap or free college for foreign students, but if South America is more your thing, try Brazil. Most of the education will take place in Portuguese, so if that is in your plan you can study near beautiful beaches and jungles. The University of Sao Paulo and State University of Campinas are both highly ranked internationally. Your money will go a long way there, too. Many of the lessons you will learn will be outside the classroom. Living on the economy in a foreign country will keep you on your toes. You will learn new customs, how to bargain, stay safe, budget and become more flexible with people. There is no better way to learn a language than by immersing yourself in it. At first, it will be the toughest thing you have ever done. Eventually, it will become second nature.
Question: German universities are popular among US students mainly because _ .
Options: (A) they offer a multicultural landscape (B) they belong to the world's best ones (C) the cost of living there is reasonable (D) the students can get their degrees easily

Ex Output:
A

Ex Input:
Article: Using a computer or smartphone at night can cause us to pile on the pounds,new research has revealed. The study found a link between blue light exposure(blue light is produced by smartphones and computers)and increased hunger.It found that exposure to blue light increases hunger levels for several hours and even increases hunger levels after eating a meal.Blue light exposure has also already been shown to cause decreased sleepiness in the evening,increasing the risk of sleeplessness. The leading researcher,Ivy Cheung,from Northwestern University in Chicago,said,"A single three-hour exposure to blue-enriched light in the evening greatly affected hunger and metabolism .These results are important because they suggest that controlling environmental light exposure for humans may represent a _ approach of influencing food intake patterns and metabolism." The study group consisted of 10 healthy adults with regular sleep and eating schedules. They completed a four-day trial under dim light conditions,which involved exposure to less than 20 lux(,)during 16 hours awake and less than 3 lux during eight hours of sleep.On the third day they were exposed to three hours of 260 lux,blue-enriched light starting10.5 hours after waking up.and the effects were compared with dim light exposure. Ivy Cheung said more research is needed to determine the functions involved in the relationship between light exposure,hunger and metabolism.
Question: What can we learn from the passage?
Options: (A) Blue light exposure can make us lose weight at night. (B) Blue light exposure has no effect on sleeplessness. (C) The researchers drew their conclusion by comparison. (D) Ivy Cheung has found the relationship between light exposure and hunger.

Ex Output:
C