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: Probably many of you know the idiom "an eye for an eye and a tooth for a tooth". But do you believe a tooth for an eye? That's something a little bit different. This strange exchange is neither a form ofretribution nor an unexpected gift from the Tooth Fairy --- it's actually a very generous gift from a young Irishman, Robert McNichol, 23, to his formerly blind father, 57-year-old Bob McNichol. In 2005, Bob McNichol's sight was destroyed in an accident when his eyes weredoused(......)with liquidaluminum . Doctors predicted that he would never be able to see again. But McNichol never liked to take no for an answer: when he heard about a unique operation called Osteo-Odonto-Keratoprosthesis, he knew he had to _ , even though the success rate was a mere 65 percent. In the technique, the eyesocket is rebuilt and implanted with a human tooth and part of the jawbone, to provide support for an artificialcornea . Luckily for McNichol, Robert was willing to sacrifice one of his teeth to help his father regain his sight. The technique isn't simple: McNichol's first stint on the operating table lasted ten hours, with a five hour follow-up session at a later date. But thanks to his son's gift, he's already seeing astonishing results. "Now I have enough sight for me to get around and I can watch television. I have come out from complete darkness." he told his friends.
Question: Bob McNichol lost his sight _ .
Options: (A) after he had an operation on his eyes (B) because of an accident (C) because he met with a serious traffic accident (D) when he was 57 years old
Example Output: B

Example Input: Article: The first day my new teacher walked into our school in Spanish Harlem, I burst out laughing. Ron Clark was a young white guy from North Carolina who talked with a funny Southern accent . He said he used to be a singing waiter. I thought, who is this guy? He's a complete joke. It was 1999 and I was in the fifth grade at New York City's P.S. 83. _ . I'd always been a troublemaker. I'd get yelled at, and then the teachers would give up on me. I thought that's what would happen with Ron Clark. I was wrong. That first week, I kept mocking him. He pulled me out to the hallway and said I'd better shape up. "Tamara," he said, "you're a smart kid. You can do better." He told me I was a natural leader and that I'd go far in life if I started applying myself. I was mad at first, but then something happened: I began to respect him. There were 29 students in our class, and it didn't take long for us to realize that Ron Clark was no ordinary teacher. He was only 27 and had the most unusual way of teaching. To help us learn the states and capitals, he changed the lyrics of a popular rap hit called "Thong Song" and had us sing and dance with him. When we read the Harry Potter books, he decorated our classroom like Hogwarts. And during the Presidential election, he put campaign posters on the walls and covered the room with 5,000 red, white and blue stars.
Question: What's the author's attitude toward the new teacher on the first day?
Options: (A) Excited. (B) Disappointed. (C) Appreciative. (D) Disdainful .
Example Output: D

Example Input: Article: You surely want to take a good school yearbook photo, for you only get to do it once, and it's what people remember you by for the whole school year. Learn how to look good and look natural in your yearbook photo with these simple tips. 1. Practice smiling in a mirror. It sounds crazy, but figuring out how to make a natural looking smile for the camera does need a little preparation. Don't be shy! Just imagine you are in front of a camera --hold your head high, look straight into the mirror and smile. Keep practicing until you find out your most attractive smiling face. 2. Choose your color wisely. In yearbook photos, lots of people look good in darker colors because they draw attention to the face. Generally, white often isn't the best choice because it can make your skin look a bit gray, especially if you're pale. Besides, stay away from super -bright colors ( bright yellow, bright blue) unless you're really sure they make you look perfect. 3. Avoid unnecessary details. Busy patterns draw attention to themselves in yearbook photos, not to your face and smile. Save them for your everyday fashion experiments. Besides, have your clothes prepared for the day when the yearbook photo is taken. The last thing you want to do is pick out the perfect thing to wear, only to find that it's in the laundry. 4. Avoid big changes to your appearance. Big changes may not turn out the way you hope. Leave some time to do your hair, such as combing it up right before the yearbook photo is taken. Don't overdo it, since you want your hair to stay in one place and your face to draw all the attention, but go for the "less is more" approach.
Question: The best title of this passage is _ .
Options: (A) How to Make Yourself Look Good (B) How to Do When Taking a School Photo (C) How to Get Ready for Your School Photo-taking (D) How to Make a Good School Photo Book
Example Output:
C