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.

Input: Consider Input: Paragraph- Sent 1: Speed is an important aspect of motion.
Sent 2: It is a measure of how fast or slow something moves.
Sent 3: To determine speed you must know two things.
Sent 4: First, you must know how far something travels.
Sent 5: Second, you need to know how long it takes to travel that far.
Sent 6: Speed can be calculated using this formula: speed = distance time A familiar example is the speed of a car.
Sent 7: In the U.S., this is usually expressed in miles per hour.
Sent 8: Think about a trip you and your family made in the car.
Sent 9: Maybe the trip covered 120 miles and it took 3 hours.
Sent 10: What was the cars speed?
Sent 11: speed = 120 mi = 40 mi/h 3h The speed of a car may also be expressed in kilometers per hour (km/h).
Sent 12: The SI unit for speed is meters per second (m/s).
Sent 13: This is the unit of measure a scientist would use.
Question: What is speed? (A) How long it takes to travel that far (B) Speed is an important aspect of motion (C) The measure of gravity against time (D) It is a measure of how far something is (E) Gravitational pull (F) When something moves (G) A force of gravity (H) How far something travels (I) An aspect of motion, it is the measure of how slow or fast something travels (J) How quick something moves in space (K) It is a measure of how fast or slow something moves (L) A measure of how fast or slow something moves (M) The measure of motion (N) An aspect of motion; a measure of how fast or slow an object moves.

Output: B, I, K, L, N.

Input: Consider Input: Paragraph- Sent 1: To protect its seagoing interests and trade routes, Portugal established strategic garrisons in Goa (India), Malacca (East Indies), and Hormuz in the Persian Gulf.
Sent 2: Portuguese explorers then embarked upon Macau (now Macao), the Congo, and various other parts of Africa, including the Sudan.
Sent 3: The Portuguese policy was to avoid armed strife and to develop a trade empire, rather than to conquer nations.
Sent 4: To this end it succeeded with relatively few blood-soaked episodes in its colonial history.
Sent 5: Adventures abroad, however, proved disastrous during the second half of the 16th century.
Sent 6: In 1557 the 14-year-old boy-king Sebastiao ascended the throne, the beginning of a calamitous reign that was to end at the battle of Alcacer-Quiber (Morocco) in pursuit of a vain crusade.
Sent 7: Sebastiao's untimely demise, alongside some 18,000 ill-prepared, badly led followers, set the stage for a crisis of succession.
Sent 8: For many years afterwards, legends and rumors bizarrely insisted that the king was still alive, and imposters turned up from time to time claiming the throne; those who were plausible enough to be deemed a threat were summarily executed.
Sent 9: In fact, the only rightful claimant to the crown was the elderly Prince Henry.
Sent 10: But after two years of alternating between the throne and his sickbed, he died, heirless.
Sent 11: Surveying the situation and smelling an opportunity, Spain occupied the power vacuum, and Portugal's neighbor and long-time antagonist became its master.
Sent 12: Spanish rule dictated Portugal's inadvertent involvement in Spain's ongoing wars.
Sent 13: In 1587 a squadron of British ships commanded by Francis Drake attacked the Algarve (now a "legitimate target" as Spanish territory) and sacked Sagres, thus depriving the world of the relics of Henry the Navigator.
Sent 14: Nine years later Faro was torched.
Sent 15: The 1386 Treaty of Windsor, by which Britain and Portugal had pledged eternal friendship, seemed a distant memory.
Sent 16: Portugal's empire was gradually eroded, and many of its trading posts (with the notable exception of Brazil) were picked off by the British and Dutch.
Sent 17: Finally, after 60 years of Spanish rule, Portuguese noblemen (aided by the French, then at war with Spain) organized a palace coup and restored independence.
Sent 18: The Great Disaster Portugal's greatest misfortune struck on All Saint's Day, 1 November 1755.
Question: What happened to Prince Henry? (A) HE had a baby (B) He was the only rightful claimant to the throne, but he died after two years of alternating between the throne and his sickbed (C) He was the greatest ruler (D) He died (E) He died at the throne (F) He ruled for a full term.

Output: B, D, E.

Input: Consider Input: Paragraph- Sent 1: When American 11 struck the World Trade Center at 8:46, no one in the White House or traveling with the President knew that it had been hijacked.
Sent 2: While that information circulated within the FAA, we found no evidence that the hijacking was reported to any other agency in Washington before 8:46.
Sent 3: Most federal agencies learned about the crash in New York from CNN.
Sent 4: Within the FAA, the administrator, Jane Garvey, and her acting deputy, Monte Belger, had not been told of a confirmed hijacking before they learned from television that a plane had crashed.
Sent 5: Others in the agency were aware of it, as we explained earlier in this chapter.
Sent 6: Inside the National Military Command Center, the deputy director of operations and his assistant began notifying senior Pentagon officials of the incident.
Sent 7: At about 9:00, the senior NMCC operations officer reached out to the FAA operations center for information.
Sent 8: Although the NMCC was advised of the hijacking of American 11, the scrambling of jets was not discussed.
Sent 9: In Sarasota, Florida, the presidential motorcade was arriving at the Emma E. Booker Elementary School, where President Bush was to read to a class and talk about education.
Sent 10: White House Chief of Staff Andrew Card told us he was standing with the President outside the classroom when Senior Advisor to the President Karl Rove first informed them that a small, twin-engine plane had crashed into the World Trade Center.
Sent 11: The President's reaction was that the incident must have been caused by pilot error.
Sent 12: At 8:55, before entering the classroom, the President spoke to National Security Advisor Condoleezza Rice, who was at the White House.
Sent 13: She recalled first telling the President it was a twin-engine aircraft-and then a commercial aircraft-that had struck the World Trade Center, adding "that's all we know right now, Mr. President."Sent 14: At the White House, Vice President Dick Cheney had just sat down for a meeting when his assistant told him to turn on his television because a plane had struck the NorthTower of the World Trade Center.
Sent 15: The Vice President was wondering "How the hell could a plane hit the World Trade Center" when he saw the second aircraft strike the South Tower.
Sent 16: Elsewhere in the White House, a series of 9:00 meetings was about to begin.
Sent 17: In the absence of information that the crash was anything other than an accident, the White House staff monitored the news as they went ahead with their regular schedules.
Question: What is the NMCC and when did their senior operations officer discuss scrambling jets? (A) The Secretary of State (B) It stands for National Military Command Center and they never discussed scrambling jets (C) Andrew Card (D) The President (E) President Bush (F) It stands for National Militia Craft Control and jets were scrambled immediately (G) The faa (H) The national military command center (I) It stands for National Militia Craft Control and jets were not in range (J) Condoleezza Rice (K) George Bush.
Output: B, H.