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.

Example Input: Paragraph- Sent 1: At 9:48, a representative from the White House shelter asked if there were any indications of another hijacked aircraft.
Sent 2: The deputy director for operations mentioned the Delta flight and concluded that "that would be the fourth possible hijack."Sent 3: At 9:49, the commander of NORAD directed all air sovereignty aircraft to battle stations, fully armed.
Sent 4: At 9:59, an Air Force lieutenant colonel working in the White House Military Office joined the conference and stated he had just talked to Deputy National Security Advisor Stephen Hadley.
Sent 5: The White House requested (1) the implementation of continuity of government measures, (2) fighter escorts for Air Force One, and (3) a fighter combat air patrol over Washington, D.C.
Sent 6: By 10:03, when United 93 crashed in Pennsylvania, there had been no mention of its hijacking and the FAA had not yet been added to the teleconference.
Sent 7: The President and the Vice President The President was seated in a classroom when, at 9:05, Andrew Card whispered to him: "A second plane hit the second tower.
Sent 8: America is under attack."Sent 9: The President told us his instinct was to project calm, not to have the country see an excited reaction at a moment of crisis.
Sent 10: The press was standing behind the children; he saw their phones and pagers start to ring.
Sent 11: The President felt he should project strength and calm until he could better understand what was happening.
Sent 12: The President remained in the classroom for another five to seven minutes, while the children continued reading.
Sent 13: He then returned to a holding room shortly before 9:15, where he was briefed by staff and saw television coverage.
Sent 14: He next spoke to Vice President Cheney, Dr. Rice, New York Governor George Pataki, and FBI Director Robert Mueller.
Sent 15: He decided to make a brief statement from the school before leaving for the airport.
Sent 16: The Secret Service told us they were anxious to move the President to a safer location, but did not think it imperative for him to run out the door.
Sent 17: Between 9:15 and 9:30, the staff was busy arranging a return to Washington, while the President consulted his senior advisers about his remarks.
Sent 18: No one in the traveling party had any information during this time that other aircraft were hijacked or missing.
Sent 19: Staff was in contact with the White House Situation Room, but as far as we could determine, no one with the President was in contact with the Pentagon.
Question: What was The President doing when he noticed the press' phones and pagers start to ring? (A) Remaining in the classroom (B) Standing behind the children (C) Listening to children read in a classroom (D) Press Conference (E) Eating Breakfast (F) Running out the door (G) Listening to Children read.
Example Output: A, C, G.

Example Input: Paragraph- Sent 1: Living things need non-living matter as well as energy.
Sent 2: What do you think matter is used for?
Sent 3: One thing is to build bodies.
Sent 4: They also need it to carry out the processes of life.
Sent 5: Any non-living matter that living things need is called a nutrient.
Sent 6: Carbon and nitrogen are examples of nutrients.
Sent 7: Unlike energy, matter is recycled in ecosystems.
Sent 8: You can see how in Figure 3.11.
Sent 9: Decomposers release nutrients when they break down dead organisms.
Sent 10: The nutrients are taken up by plants through their roots.
Sent 11: The nutrients pass to primary consumers when they eat the plants.
Sent 12: The nutrients pass to higher level consumers when they eat lower level consumers.
Sent 13: When living things die, the cycle repeats.
Question: Name living or nonliving things that uses energy (A) Plants (B) Space (C) Matter (D) Animals (E) Rocks.
Example Output: A, C, D.

Example Input: Paragraph- Sent 1: Zinni feared that Bin Laden would in the future locate himself in cities, where U.S. missiles could kill thousands of Afghans.
Sent 2: He worried also lest Pakistani authorities not get adequate warning, think the missiles came from India, RESPONSES TO AL QAEDA'S INITIAL ASSAULTS 135 and do something that everyone would later regret.
Sent 3: Discussing potential repercussions in the region of his military responsibility, Zinni said, "It was easy to take the shot from Washington and walk away from it.
Sent 4: We had to live there."Sent 5: Zinni's distinct preference would have been to build up counterterrorism capabilities in neighboring countries such as Uzbekistan.
Sent 6: But he told us that he could not drum up much interest in or money for such a purpose from Washington, partly, he thought, because these countries had dictatorial governments.
Sent 7: After the decision-in which fear of collateral damage was an important factor- not to use cruise missiles against Kandahar in December 1998, Shelton and officers in the Pentagon developed plans for using an AC-130 gunship instead of cruise missile strikes.
Sent 8: Designed specifically for the special forces, the version of the AC-130 known as "Spooky"can fly in fast or from high altitude, undetected by radar; guided to its zone by extraordinarily complex electronics, it is capable of rapidly firing precision-guided 25, 40, and 105 mm projectiles.
Sent 9: Because this system could target more precisely than a salvo of cruise missiles, it had a much lower risk of causing collateral damage.
Sent 10: After giving Clarke a briefing and being encouraged to proceed, Shelton formally directed Zinni and General Peter Schoomaker, who headed the Special Operations Command, to develop plans for an AC-130 mission against Bin Laden's headquarters and infrastructure in Afghanistan.
Sent 11: The Joint Staff prepared a decision paper for deployment of the Special Operations aircraft.
Sent 12: Though Berger and Clarke continued to indicate interest in this option, the AC-130s were never deployed.
Sent 13: Clarke wrote at the time that Zinni opposed their use, and John Maher, the Joint Staff 's deputy director of operations, agreed that this was Zinni's position.
Sent 14: Zinni himself does not recall blocking the option.
Sent 15: He told us that he understood the Special Operations Command had never thought the intelligence good enough to justify actually moving AC-130s into position.
Sent 16: Schoomaker says, on the contrary, that he thought the AC-130 option feasible.
Sent 17: The most likely explanation for the two generals' differing recollections is that both of them thought serious preparation for any such operations would require a long-term redeployment of Special Operations forces to the Middle East or South Asia.
Sent 18: The AC-130s would need bases because the aircraft's unrefueled range was only a little over 2,000 miles.
Question: What option does Zinni not recall blocking (A) Using "Spooky" missiles (B) Using AC-130 against Bin Laden's headquarters and infrastructure in Afghanistan (C) Using AC-130 missiles (D) Cruise missile strikes (E) Does not recall blocking the Joint Staff 's deputy director of operations (F) Building up counterterrorism capabilities in neighboring countries such as Uzbekistan (G) That he opposed their use (H) Developing plans for an AC-130 mission against Bin Laden (I) Keeping Pakistan in the dark as to the origin of the missile strikes.
Example Output:
A, B, C, H.