TASK DEFINITION: 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.
PROBLEM: Article: The tallest building in the United States, the One World Trade Center, opened on November 3, 2014 in New York. The building is 1,776 feet tall, making it the 3rd tallest building in the world. It has 104 floors. The building stands in the area where the twin towers of the World Trade Center once stood. On September 11, 2001, a group of terrorists destroyed these twin towers and killed nearly 3,000 people. It took 8 years to build the new One World Trade Center. Does the height of the building in feet reminds you of something in history? _ is the year when the United States declared its independence from Great Britain. One problem with such a tall building is how to clean the windows. Well, a platform hangs from ropes, and workers on the platform clean windows. On November 12, while two men were busy cleaning windows, a rope of the platform broke near the 68th floor. The two men were saved by cutting a hole in the glass window. The two tallest buildings in the world are the BurjKhalifa in Dubai, UAE and the Makkah Royal Clock Tower in Mecca, Saudi Arabia.
Question: When did the One World Trade Center open?
Options: (A) September 11, 2001. (B) September 11, 2011. (C) November 3, 2006. (D) November 3, 2014.

SOLUTION: D

PROBLEM: Article: Astronaut Mark Kelly announced today that he is retiring from NASA in order to focus on the recovery of his wife, Gabrielle Giffords. Kelly, who is 47, began his NASA career in 1996. He has traveled to the International Space Station four times and served aboard space shuttles Endeavour and Discovery. Most recently he was commander of Endeavour's final voyage, which ended on June l. "After 25 years of service to our country, I am retiring from the United States Navy and leaving NASA. My retirement will take effect on October l. " he said. "This was no easy decision. Words cannot express my deep gratitude for the opportunities I have been given to serve our great nation. And I have always been proud to be a member of the NASA. Public service has been more than a job for me and for my family. My brother continues to serve in NASA and in the Navy. My parents are retired police officers. And my wife Gabrielle proudly serves in the US House of Representatives." he continued. "As life takes unexpected turns we frequently come to a crossroads. I am at this point today. Gabrielle is working hard every day on her way to recovery. I want to be by her side. Stepping aside from my work in the Navy and at NASA will allow me to be with her and with my two daughters. I love them all very much and there is no doubt that we will move forward together. After some time off, I will look for new opportunities and I'm hopeful that one day I will again serve our country." Kelly said. On Jan 8, Giffords was shot in the head and was severely injured while meeting with her supporters. She returned to her Tucson home last week for the first time since then.
Question: Mark Kelly must have been_when he announced his decision.
Options: (A) regretful (B) cheerful (C) peaceful (D) meaningful

SOLUTION: A

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Question: The best title of the 3rd advertisement would be_.
Options: (A) Training at Home (B) Learning at Home (C) Recording Work (D) Working at Home

SOLUTION:
D