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: Among the early blows struck for independence was a rebellion in the town of Olhao.
Sent 2: On 16 June 1808, the townsfolkarmed with little more than ancient swords, spears, and stonesattacked and captured the local French garrison.
Sent 3: It's said that a party of local men then set sail from Olhao all the way to Brazil, without maps or navigational aids, to tell the king of the insurrection.
Sent 4: The real battle, however, was waged under the leadership of the Duke of Wellington, whose coalition forces expelled the French after two years of bitter fighting.
Sent 5: The war left Portugal further weakened, and in 1822 its major empire outpost, Brazil, declared independence.
Sent 6: At the same time, a dispute over the crown continually raged between Pedro IV, the absentee monarch who preferred to reign as Emperor of Brazil rather than return to Portugal, and his brother Miguel.
Sent 7: The power struggle, with strong overtones of absolutism versus liberalism, excited the interest and intervention of other powers.
Sent 8: With British help, Pedro defeated Miguel off Cape St. Vincent in 1833, and his expeditionary force marched to Lisbon.
Sent 9: Pedro took the throne, though armed struggle continued for months and the lingering bitterness long after that.
Sent 10: By 1892 Portugal, racked by wars and the continuing expense of maintaining its African colonies (including those of Mozambique and Angola), declared itself bankrupt.
Sent 11: The seeds of discontent with absolutist rule were sown.
Sent 12: Kingdom's End Bloodshed would haunt the remaining years of the Portuguese monarchy.
Sent 13: On 1 February 1908, the royal family was riding in an open carriage along the Lisbon river front plaza, Terreiro do Paco, when an assassin opened fire and killed King Carlos and the heir to the throne, Prince Luis Filipe.
Sent 14: The prince's younger brother, Prince Manuel, was also hit, but he survived and was thus propelled to the throne at the tender age of 19.
Sent 15: Amid republican agitation, a surprise uprising led by elements within the armed forces deposed Manuel in 1910.
Sent 16: Having ruled for less than three years, Manuel died in exile in 1932 in England.
Sent 17: The sudden end of more than seven centuries of monarchy brought confusion and crisis to the country.
Sent 18: Presidents and prime ministers were ushered into and out of office an unbelievable 45 times between 1910 and 1926, until a military revolution suspended Portugal's problematic democracy.
Question: Why was King Carlos assassinated? (A) His brother wanted the throne (B) Discontent with Absolutist Rule (C) National bankruptcy and absolutist government (D) Because he betrayed the nation (E) Due to discontent with absolutist rule.
Example Output: B, C, E.

Example Input: Paragraph- Sent 1: A flight from Los Angeles to Nashville is diverted to land in Las Vegas , Nevada when one of the passengers , Ralph Bundt becomes violent and attacks a stewardess .
Sent 2: Ralph had been bitten by a hamster Which is really a lab rat , brought onto the plane by Henry for his school students .
Sent 3: Ralph is restrained , but not before he bites the flight attendant Paula .
Sent 4: The plane is forced to make an emergency landing in Las Vegas , and once it has landed , air traffic control refuses to let it approach the gate .
Sent 5: Disobeying orders , Captain Forrest and his co-pilot Willsy find a jetway operated by a baggage handler Ed Ramirez .
Sent 6: Almost everyone evacuates the plane , except for the elderly couple Bev Stevens and her paralyzed mute husband Doc Stevens , and the pilots , who try to keep the violent Ralph contained in an aircraft bathroom .
Sent 7: However , they learn that they have been locked out of the airport .
Sent 8: Soon , armed soldiers and what appear to be CDC scientists surround the terminal .
Sent 9: One of the passengers , a military medic named Shilah Washington , reveals she has a medical kit in her bag in the plane's cargo hold .
Sent 10: The lead flight attendant Jenny , Henry , Ed , Nial Britz , and Preston sneak back into the plane to retrieve it .
Sent 11: They retrieve Shilah's kit and Nial's gun and they try to leave the hold .
Sent 12: While in the plane , Jenny is attacked by an infected Captain Forrest and Nial shoots and kills him , but it seems that some of the captain's blood had gotten into Nial's eye .
Question: Where is Ralph contained after he is bitten by a hamster? (A) Terminal (B) Bedroom (C) Aircraft bathroom (D) Aircraft seat.
Example Output: C.

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: Who told the president that "America is under attack" (A) Dick Cheney (B) Robert Mueller (C) Andrew Card (D) Hillary Clinton (E) VP Dick Cheney (F) NORAD.
Example Output:
C.