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: Tuesday, September 11, 2001, dawned temperate and nearly cloudless in the eastern United States.
Sent 2: Millions of men and women readied themselves for work.
Sent 3: Some made their way to the Twin Towers, the signature structures of the World Trade Center complex in New York City.
Sent 4: Others went to Arlington, Virginia, to the Pentagon.
Sent 5: Across the Potomac River, the United States Congress was back in session.
Sent 6: At the other end of Pennsylvania Avenue, people began to line up for a White House tour.
Sent 7: In Sarasota, Florida, President George W. Bush went for an early morning run.
Sent 8: For those heading to an airport, weather conditions could not have been better for a safe and pleasant journey.
Sent 9: Among the travelers were Mohamed Atta and Abdul Aziz al Omari, who arrived at the airport in Portland, Maine.
Sent 10: Boston: American 11 and United 175.
Sent 11: Atta and Omari boarded a 6:00 A.M. flight from Portland to Boston's Logan International Airport.
Sent 12: When he checked in for his flight to Boston, Atta was selected by a computerized prescreening system known as CAPPS (Computer Assisted Passenger Prescreening System), created to identify passengers who should be subject to special security measures.
Sent 13: Under security rules in place at the time, the only consequence of Atta's selection by CAPPS was that his checked bags were held off the plane until it was confirmed that he had boarded the aircraft.
Sent 14: This did not hinder Atta's plans.
Sent 15: Atta and Omari arrived in Boston at 6:45.
Sent 16: Seven minutes later, Atta apparently took a call from Marwan al Shehhi, a longtime colleague who was at another terminal at Logan Airport.
Sent 17: They spoke for three minutes.
Sent 18: It would be their final conversation.
Question: Where did Atta and Oari travel from, and where did they travel to? (A) Boston to Florida (B) Boston, Prtland (C) Portland, Boston (D) Maine to Boston (E) Portland, Maine where they traveled to Boston (F) Boston to Portland, Maine (G) Boston to Virginia (H) Virginia to Boston (I) Portland, Maine to Boston (J) Florida to Boston.
Example Output: C, D, E, I.

Example Input: Paragraph- Sent 1: Crew members ran for their lives when overhanging metalwork crashed onto a stage in a Toronto park Saturday afternoon, pinning and killing one man, authorities said.
Sent 2: The collapse happened around 4 p.m., one hour before spectators were set to begin streaming in for a concert by the alternative rock group Radiohead.
Sent 3: Several people were on the stage at the time, preparing for the show, when scaffolding-like material towering about 50 feet above collapsed.
Sent 4: "Unfortunately, four people were hurt," Toronto police Constable Tony Vella said.
Sent 5: "The remainder of the people, when they heard the stage coming (down), ran from the area."Sent 6: Firefighters arrived to find one man "trapped under the structure," said Toronto fire Platoon Chief Tony Bellavance.
Sent 7: They helped to extricate the man, then moved away from what was then still considered an "unstable structure," Bellavance added.
Sent 8: Paramedics, who happened to be at the scene in preparation for the concert, "immediately rendered aid," according to on-site Toronto Emergency Medical Services commander Peter Rotolo.
Sent 9: The victim -- who has not been identified, amid efforts to contact his next of kin -- was pronounced dead at the scene.
Sent 10: Police said he was in his 30s.
Sent 11: Another man who suffered serious injuries due to the collapse was transported to Toronto's Sunnybrook Hospital, Ian McClelland of the city's EMS department said.
Sent 12: The 45-year-old man suffered a head injury that isn't considered life-threatening, according to Toronto police.
Sent 13: Two other men with minor injuries were assessed and released, McClelland said.
Sent 14: Aerial footage afterward showed that some metal framing -- some of it covered in a blue material -- crumpled on the stage, which was in front of a large grassy area.
Sent 15: Some of the scaffolding-like material remained standing, reaching about 50 feet in the sky.
Sent 16: The stage was being set up especially for the Radiohead concert, Vella said.
Sent 17: At the time it came down, the weather was good with no storm rolling through or significant winds, added fellow police Constable Harrison Ford.
Question: Who "immediately rendered aid" when overhanging metalwork crashed onto a stage in a Toronto park Saturday afternoon? (A) Mobile command unit members (B) Emergency medical services (C) Paramedics who happened to be at the scene (D) Parmedics (E) Firefighters (F) Paramedics.
Example Output: C, D, F.

Example Input: Paragraph- Sent 1: Expansion quickly peaked however, and the European powers who had carved up the New World set about testing each other in dynastic conflicts and colonial rivalry.
Sent 2: The English were the main rivals of the Dutch on the high seas, and there were several wars between the two in the 17th and 18th centuries.
Sent 3: In 16651667 the Dutch sailed up the River Medway and sank the British fleet moored there.
Sent 4: The 18th century saw Amsterdam grow into the foremost financial center in the world, but the seeds of decline had already been planted.
Sent 5: When the English colonies in New England rose up in revolt against the British, they found ready Ailies in the Dutch.
Sent 6: From their colonies in the Caribbean they sent caches of arms and ammunition.
Sent 7: The British were furious and went to war in 1780, destroying the Dutch navy and signaling a sudden decline in power and influence from which the Netherlands never recovered.
Sent 8: Trade suffered to such an extent that in 1791 the VOC went into liquidation.
Sent 9: In the latter part of the century there were anti-Orange demonstrations by pro-French factions in the country, and in 1795 Napoleon Bonaparte took the Netherlands in his epic march across Europe.
Sent 10: Under the yoke of another foreign power, and with trade at an all time low, the Golden Age was truly dead.
Sent 11: The Return of the House of Orange Napoleon installed his brother Louis as King of Holland and he chose to take the fine Town Hall on Dam Square as his palacenow the Koninklijk Palace.
Sent 12: But only four years later he fled the city after civil disturbances broke out when he raised taxes.
Sent 13: When Napoleon's bubble burst and French power began to wane, William of Orange emerged from exile and was proclaimed king in 1813.
Sent 14: Amsterdam had to work its way out of economic decline, but throughout the 19th century the city grew steadily.
Sent 15: Industrialization changed the city.
Sent 16: With the building of the Central Station at the end of the century, Amsterdam turned its back on its seafaring past and looked towards the mechanical age for its future.
Sent 17: The station was built over the old harbor wall and some of the oldest canals in the city center were filled in to allow better access to motorized vehicles.
Sent 18: Dam Square was landlocked for the first time in its history.
Question: In the 1700's, who sent arms and ammunition, from their colonies in the Caribbean, to battle the British? (A) The Dutch (B) British Colonies (C) French (D) Dutch Navy.
Example Output:
A, D.