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.

Input: Consider Input: Article: Being beautiful means a lot to teenage girls. Once it did to me too. I was the vainest person in the world, but that all changed one December night. It was a Thursday, and I was getting ready for the wrestling tournament the following day. I was so excited; it was going to be my first tournament as a cheerleader. I walked past the mirror and stopped to check my appearance. I noticed my eyebrows were a little bushy, and that's when my vanity kicked in. The brows could be easily fixed with the waxing kit I had purchased. I put the jar of wax in the microwave. But instead of heating the wax for 30 seconds, I pressed too many zeros and heated it for three minutes. As I reached for the jar, I dropped it, spilling it all over myself. My mother came running when she heard my screams. The hot wax was rolling down my face and arm. My mom took a wet washcloth and tried to wash the wax off my face. This proved to be a bad idea, because the wax was honey based, and it pulled my skin off with the wax. The 15-mile drive to the emergency room seemed to take hours. When we finally arrived, the nurse didn't waste any time. They took me straight to a doctor and gave me extra-strength painkillers, so my mind was in confusion. The doctor explained how severe my burns really were: my arm was a combination of first-, second- and third-degree burns, and needed to stay bandaged. My face was first- and second-degree burns. If the wax had gotten any closer to my right eye, I would have lost my sight. I was covered in multi-colored "goop ", wrapped, and sent home to recover. I got up the next morning and the first thing I wanted to do was wash off the remaining wax. I unwrapped the bandages and "degooped", letting warm water gently remove the rest of the wax. The next step was to do a self-evaluation of the damage. I couldn't believe how horrible I looked. A horror-movie monster stared back at me from the mirror. All I could think was, my life is over. For someone as vain as me, this was very true. I thought I was going to be horribly disfigured for the rest of my life! All I could do was cry. My mom made it worse by forcing me to go out in public. She dragged me to the grocery store and wherever else she felt like taking me. Everywhere we went, people had a million questions, none of which I wanted to answer. Then my mom declared she was going to put me through even more torture--I had to go to school on Monday. School only led to more questions from more people. Now, two years later, my wounds have healed, leaving a few scars. I still feel self-conscious if I don't wear make-up, and I've discovered that three-quarter length sleeves are wonderful for covering the scars on my arm. After spending several months adjusting to this injury, I realized how vain I was. _ . It took this event to teach me that no matter how much you change on the outside, you're still the same person on the inside.
Question: After the accident, the writer has come to realize that _ .
Options: (A) teenage girls care too much about their appearance (B) loving beauty will necessarily make one disfigured (C) we can never judge a person merely by one's looks (D) sometimes being beautiful can cost you something

Output: D

Input: Consider Input: Article: The red crab lives on Christmas Island in the Indian Ocean and has been found nowhere else in the world. But on its homeland it is a very significant species -- some 120 million individuals cover the rain forest floor and play a major role in determining the structure of the ecosystem. These large crabs are active during the day but prefer to stay in the shade and can die in the heat of direct sunlight. They feed on fallen leaves, seeds, fruits and flowers, recycling nutrients and helping to determine the spread and composition of native plants. Most of the year the red crabs live in the holes they dig throughout the forest. During the dry season they hide in these shelters to keep their body wet and remain there for two to three months. But when wet season returns in October or November they begin a legendary mass migration to their seaside breeding grounds, moving in color1ful wave that wash over all obstacles like roads (including special passages and some closed roads built for the red crab) and even seaside cliffs. The annual migration is also closely tied to the lunar schedule. The crabs arrive at the coast and breed at such a time that the females can produce eggs and develop them in caves for a dozen or so days before carrying them into the sea exactly when high tide turns between the last quarter and new moon. During this period sea level on the beaches varies the least and offers an easier approach, which is so important that if the weather delays the migration crabs will put off laying eggs until the next lunar month. Red crab eggs grow right away, and the young live in the sea for a month before returning to the coast, changing into air breathers, and slowly returning inland to begin the cycle once again.
Question: The red crab is a very significant species on its homeland because _ .
Options: (A) it's gradually dying out (B) it's not found anywhere else (C) it's well protected by the local people (D) its huge population affects its native ecosystem

Output: D

Input: Consider Input: Article: I was going on vacation to meet up with family for a week of fun in Denver. I got to the airport, ready to leave my work behind for a few days. I was comfortably awaiting my flight with a good book to read, when an elderly lady was wheeled to our waiting area. I couldn't help but notice the trouble she was having trying to open a packet of nuts with her shaking hands. I sighed. No one else was willing to meet her gaze so I offered to help. She was very grateful. It turned out that these nuts were her entire breakfast. We sat and chatted. When the time came to board the plane the attendants were nowhere to be seen. The lady could walk but needed some help, so I volunteered to help her on the plane and carry her bag. As I helped her get settled I noticed her "seat mate," a businessman, looked a bit horrified at having to make the fight with her. He offered to change seats with me -- and I agreed. We landed and I needed to change planes, but I helped her disembark first. The wheelchair she ordered was nowhere to be seen so we slowly walked to gate where her daughter was waiting. We only exchanged first names, and she was so grateful to have my help. I had to run to catch my connection but, as I thought about the experience, I saw her as my airport angel: a chance for me to hope that in the future when I'm in my 80's and traveling, someone will take the time to connect with me. Pay it forward.
Question: What had the author planned to do during the flight?
Options: (A) Reading. (B) Helping others. (C) Resting. (D) Sleeping.
Output: A