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: (CNN) -- Air New Zealand's latest in-flight safety video, released Tuesday, is already another viral hit but is encountering some turbulence over its use of several bikini-clad Sports Illustrated models.
Sent 2: View the video here Previous versions of the video -- starring anything from Hobbits to Bear Grylls to New Zealand's all conquering All Blacks rugby team -- have revolutionized the on-board safety message airlines deliver to passengers.
Sent 3: The most recent effort though is being criticized by some as neither ground-breaking nor as creative, after the airline teamed up with Sports Illustrated magazine to produce what it's calling "The world's most beautiful safety video."Sent 4: The "Safety in Paradise" video, which rolls out on Air New Zealand flights at the end of February, is beautifully shot and certainly cheerful and fun.
Sent 5: It was filmed in the Cook Islands -- home to several stunning beaches -- and coincides with the 50th anniversary of Sports Illustrated's Swimsuit franchise.
Sent 6: Earlier videos have been witty, clever and quirky but the paradise video combines a far less subtle use of eye-catching material -- using four of the planet's most beautiful, and scantily clad women, to deliver information to passengers.
Sent 7: The models include Ariel Meredith, Chrissy Teigen, Hannah Davis and Jessica Gomes.
Sent 8: Christie Brinkley makes a cameo.
Sent 9: "It seems that suddenly they are saying that my sexuality is all that matters about me," one critic, Massey University lecturer and feminist commentator Deborah Russell told the Sydney Morning Herald.
Sent 10: Social media reaction to the video was predictably mixed, though the majority of commenters on Facebook and Twitter appeared to support the video -- and the women in it.
Sent 11: Many praised Air New Zealand for using beautiful women to promote the Cook Islands and complimented the airline on its marketing prowess, given the mass of media attention now being given to the safety video.
Sent 12: From the negative corner, while some commented they were appalled Air New Zealand would be so sexist, others said the Sports Illustrated version just isn't all that clever -- a disappointing follow up to the airline's creative safety videos of the past.
Question: Which company created "The world's most beautiful safety video"? (A) Lufstansa (B) Australian Air (C) AeroFrance (D) Air New Zealand.
Example Output: D.

Example Input: Paragraph- Sent 1: American Airlines Flight 11: FAA Awareness.
Sent 2: Although the Boston Center air traffic controller realized at an early stage that there was something wrong with American 11, he did not immediately interpret the plane's failure to respond as a sign that it had been hijacked.
Sent 3: At 8:14, when the flight failed to heed his instruction to climb to 35,000 feet, the controller repeatedly tried to raise the flight.
Sent 4: He reached out to the pilot on the emergency frequency.
Sent 5: Though there was no response, he kept trying to contact the aircraft.
Sent 6: At 8:21, American 11 turned off its transponder, immediately degrading the information available about the aircraft.
Sent 7: The controller told his supervisor that he thought something was seriously wrong with the plane, although neither suspected a hijacking.
Sent 8: The supervisor instructed the controller to follow standard procedures for handling a "no radio" aircraft.
Sent 9: The controller checked to see if American Airlines could establish communication with American 11.
Sent 10: He became even more concerned as its route changed, moving into another sector's airspace.
Sent 11: Controllers immediately began to move aircraft out of its path, and asked other aircraft in the vicinity to look for American 11.
Sent 12: At 8:24:38, the following transmission came from American 11: American 11: We have some planes.
Sent 13: Just stay quiet, and you'll be okay.
Sent 14: We are returning to the airport.
Sent 15: The controller only heard something unintelligible; he did not hear the specific words "we have some planes."Sent 16: The next transmission came seconds later: American 11: Nobody move.
Sent 17: Everything will be okay.
Sent 18: If you try to make any moves, you'll endanger yourself and the airplane.
Question: How long was there between the flight failing to heed instructions and the transponder being turned off? (A) 9 minutes (B) 7 minutes (C) 7 Minutes (D) 11 minutes (E) 9 Miuntes (F) 1 minute.
Example Output: B, C.

Example Input: Paragraph- Sent 1: Abrasion is another type of weathering.
Sent 2: Like ice wedging, it is a form of mechanical weathering.
Sent 3: Like ice wedging, abrasion does not change the rock into another type of rock.
Sent 4: With abrasion, one rock or piece of sediment bumps against another rock.
Sent 5: Rocks dont normally roll around on their own, so why do they move?
Sent 6: There are a couple of reasons a rock may move.
Sent 7: Gravity can cause rocks to move.
Sent 8: They may roll downhill or fall off a cliff.
Sent 9: As they roll down a hill, they bump into each other.
Sent 10: Maybe a moving rock hits a rock that is not moving at the bottom of the hill.
Sent 11: Moving water causes rocks and sediment to move.
Sent 12: Rocks are bounced along the bottom and bump against one another.
Sent 13: As they collide, they begin to chip away at each other.
Sent 14: Angular rocks become more rounded with each collision.
Sent 15: Strong winds cause abrasion.
Sent 16: The wind carries sediment.
Sent 17: This sediment is thrown against other rocky surfaces by the wind.
Sent 18: It is like sand-blasting a rock.
Question: How does strong wind cause abrasion? (A) This sediment the wind carries is thrown against other rocky surfaces by the wind (B) The wind carries sediment that is thrown against other rocky surfaces, acting like sand-blasting a rock (C) Blowing over the surface (D) Picking them up and moving them (E) The wind carries sediment.
Sent 17: This sediment is thrown against other rocky surfaces by the wind (F) Moving waters (G) Making water crash against rocks.
Example Output:
A, B, E.