TASK DEFINITION: You are given a paragraph, a question and some answer options (associated with "A", "B", "C", "D", etc.) You need to list all the correct answer options with their associated letters (e.g. "A" can be a valid answer). Note that sometimes, more than one option can answer the question correctly and completely. In those cases, please generate all such options separated by a comma (e.g. "A, B" is a valid answer). Do not generate anything else apart from one or more of the following characters: 'A', 'B, 'C', 'D', etc.
PROBLEM: Paragraph- Sent 1: Although Bin Laden, Atef, and KSM initially contemplated using established al Qaeda members to execute the planes operation, the late 1999 arrival in Kandahar of four aspiring jihadists from Germany suddenly presented a more attractive alternative.
Sent 2: The Hamburg group shared the anti-U.S. fervor of the other candidates for the operation, but added the enormous advantages of fluency in English and familiarity with life in the West, based on years that each member of the group had spent living in Germany.
Sent 3: Not surprisingly, Mohamed Atta, Ramzi Binalshibh, Marwan al Shehhi, and Ziad Jarrah would all become key players in the 9/11 conspiracy.
Sent 4: Mohamed Atta was born on September 1, 1968, in Kafr el Sheikh, Egypt, to a middle-class family headed by his father, an attorney.
Sent 5: After graduating from Cairo University with a degree in architectural engineering in 1990, Atta worked as an urban planner in Cairo for a couple of years.
Sent 6: In the fall of 1991, he asked a German family he had met in Cairo to help him continue his education in Germany.
Sent 7: They suggested he come to Hamburg and invited him to live with them there, at least initially.
Sent 8: After completing a course in German, Atta traveled to Germany for the first time in July 1992.
Sent 9: He resided briefly in Stuttgart and then, in the fall of 1992, moved to Hamburg to live with his host family.
Sent 10: After enrolling at the University of Hamburg, he promptly transferred into the city engineering and planning course at the Technical University of Hamburg-Harburg, where he would remain registered as a student until the fall of 1999.
Sent 11: He appears to have applied himself fairly seriously to his studies (at least in comparison to his jihadist friends) and actually received his degree shortly before traveling to Afghanistan.
Sent 12: In school, Atta came across as very intelligent and reasonably pleasant, with an excellent command of the German language.
Sent 13: When Atta arrived in Germany, he appeared religious, but not fanatically so.
Sent 14: This would change, especially as his tendency to assert leadership became increasingly pronounced.
Sent 15: According to Binalshibh, as early as 1995 Atta sought to organize a Muslim student association in Hamburg.
Sent 16: In the fall of 1997, he joined a working group at the Quds mosque in Hamburg, a group designed to bridge the gap between Muslims and Christians.
Sent 17: Atta proved a poor bridge, however, because of his abrasive and increasingly dogmatic personality.
Sent 18: But among those who shared his beliefs, Atta stood out as a decisionmaker.
Question: Were the key players in the 9/11 conspiracy who executed the plane operations established al Qaeda members? (A) Yes (B) Not specified.

SOLUTION: A.

PROBLEM: Paragraph- Sent 1: The center of an atom is held together by powerful forces.
Sent 2: This gives them a huge amount of stored energy.
Sent 3: This type of energy is called nuclear energy.
Sent 4: This energy can be released and used to do work.
Sent 5: This happens in nuclear power plants where they split apart the nucleus of an atom.
Sent 6: This splitting apart is called nuclear fission.
Sent 7: Another type of nuclear energy happens in the Sun.
Sent 8: Here the atoms nuclei are not split apart.
Sent 9: Instead, the nuclei of the atoms are fused, or joined together.
Sent 10: This process is called nuclear fusion.
Sent 11: Some of the suns energy travels to Earth.
Sent 12: This energy from nuclear fusion warms the planet and provides the energy for photosynthesis.
Question: Some of the Sun's energy travels to Earth and becomes energy for what process? (A) "Photosynthesis" (B) kinetic energy (C) Energy used for photosynthesis (D) It becomes plasma (E) Energy for plants (F) Solar energy (G) Heat energy (H) For a process called London Dispersion.

SOLUTION: A, C, E.

PROBLEM: Paragraph- Sent 1: (CNN) -- Cuba will pardon more than 2,900 prisoners, the government said Friday, though U.S. subcontractor Alan Gross is not among those who will be freed.
Sent 2: The decision to release the prisoners follows "numerous requests" from their family members and religious institutions, and is a humanitarian gesture, said Cuban President Raul Castro.
Sent 3: Among those who might be freed are prisoners over the age of 60, along with those who are sick, female or young with no previous criminal record.
Sent 4: With some exceptions, prisoners convicted of spying, terrorism, murder and drug trafficking will not be released.
Sent 5: Those who will be freed have already served a "important" part of their sentences and exhibited good behavior, according to an official statement published on the state-run website Cubadebate.
Sent 6: The jailed American, Gross, will not be among those pardoned, the Cuban Interests Section in Washington said.
Sent 7: Gross was jailed in December 2009, when he was working as a subcontractor on a U.S. Agency for International Development project aimed at spreading democracy.
Sent 8: Castro has accused him of importing satellite equipment to connect dissidents to the Internet, and this year Cuba's highest court upheld the 15-year sentence imposed on Gross for committing crimes against the security of the state.
Sent 9: He has maintained his innocence and said he was trying to help connect the Jewish community to the Internet.
Sent 10: Castro, speaking to the National Assembly, said that 86 prisoners from 25 countries would be among those released in coming days.
Sent 11: He cited the upcoming visit of Pope Benedict XVI as one of the motivations behind the move, which he said showed the "generosity and strength of the revolution."Sent 12: The pope has said he plans to visit Mexico and Cuba before Easter.
Question: Which historical event was compared to releasing prisoners from Cuba? (A) Pope Benedict XVI's revolution, which he said showed the "generosity and strength of the revolution." (B) The Cuban revolution (C) The liberation of Nazi camps.

SOLUTION:
B.