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: Elettra stuck the little slip of paper, on which the recipe was written, into her shabby pocket-book without looking at it.
Sent 2: She could read and write fairly well, and had been used to helping her husband the under-steward with his accounts at Muro, but even if she had looked at the recipe she would have understood nothing of the doctor's hieroglyphics and abbreviated Latin words.
Sent 3: The prescription was for a preparation of arsenic, which Matilde had formerly taken for some time.
Sent 4: The chemist would not make any difficulty about preparing twenty doses of it for the Countess Macomer, though the whole quantity of arsenic contained in so many would probably be sufficient to kill one not accustomed to the medicine, if taken all at once.
Sent 5: But though Matilde was so anxious to have the stuff before luncheon, she had a number of doses of it put away in a drawer, which she took out and counted, after Elettra had gone.
Sent 6: She opened one of the little folded papers and looked at the fine white powder it contained, took a little on the end of her finger and tasted it.
Sent 7: Then, from the same drawer, she took a package done up in coarser paper, and opened it likewise, looked at it, smelt it, and touched it with the tip of her tongue very cautiously indeed.
Sent 8: It was white, too, but coarser than the medicine.
Sent 9: She was very careful in tasting it, and she immediately rinsed her mouth with water, before she tied up the package again, shut the drawer, and put the key into her pocket.
Question: Who could read and write fairly well? (A) Matilde (B) Muro (C) Elettra.
Example Output: C.

Example Input: Paragraph- Sent 1: The Glory of Melaka: In the early days, if you were not a pirate or a mosquito, Melaka was not much of a place to live.
Sent 2: The land was infertile, just a swampy plain, the river small and sluggish.
Sent 3: But it had a sheltered harbor, protected from the monsoons by neighboring Sumatra.
Sent 4: Later, the strategic location and deep-water channel close to the coast brought in the bigger vessels of the trade-wind traffic crossing the Indian Ocean.
Sent 5: The first to realize the larger commercial potential, as so often throughout the country's subsequent history, were the Chinese.
Sent 6: In 1409, under a new directive from Emperor Chu Ti to pursue trade in the South Seas and the Indian Ocean, a Chinese fleet of 50 ships headed by Admiral Cheng Ho called in at Melaka.
Sent 7: They made Parameswara an offer he could not refuse: port facilities and an annual financial tribute in exchange for Chinese protection against the marauding Thais.
Sent 8: In 1411, Parameswara took the money to Beijing himself, and the emperor gratefully made him a vassal king.
Sent 9: Twenty years later, the Chinese withdrew again from the South Seas trade.
Sent 10: The new ruler of Melaka, Sri Maharajah, switched his allegiance to the Muslim trading fraternity by marrying into the Muslim faith, wedding the daughter of a sultan in Sumatra.
Sent 11: Islam won its place in Malaya not by conquestas had been the case in North Africa and Europebut by trade, dynastic alliances, and peaceful preaching.
Sent 12: Bengali peddlers had already brought the faith to the east coast.
Sent 13: In Melaka and throughout the peninsula, Islam thrived as a strong, male-dominated religion of individuality, offering dynamic leadership and preaching brotherhood and self-relianceall qualities ideally suited to the coastal trade.
Sent 14: At the same time, Sufi mystics synthesized Islamic teaching with local Malay traditions of animistic magic and charisma, though Islam did not become the state religion until Muzaffar Shah became sultan of Melaka (14461459).
Sent 15: But the key figure in the sultanate was Tun Perak, bendahara (prime minister) and military commander.
Sent 16: He expanded Melaka's power along the west coast and down to Singapore and the neighboring Bintan islands.
Sent 17: He also had orang laut pirates patrolling the seas to extort tribute from passing ships.
Sent 18: After Ailied district chiefs had repelled assaults from Thai-controlled armies from Pahang, Tun Perak personally led a famous victory over a Thai fleet off Batu Pahat in 1456.
Question: What is a positive point about Melaka? (A) Malaka was the trading and business hub of in the region (B) It had a sheltered harbor, protected from the monsoons by neighboring Sumatra (C) It had an immense wealth of resources (D) They offered a dynamic leadership and preaching brotherhood and self-reliance (E) The land was infertile, just a swampy plain, the river small and sluggish (F) Sheltered Harbor.
Example Output: A, B, F.

Example Input: Paragraph- Sent 1: The Vice President stated that he called the President to discuss the rules of engagement for the CAP.
Sent 2: He recalled feeling that it did no good to establish the CAP unless the pilots had instructions on whether they were authorized to shoot if the plane would not divert.
Sent 3: He said the President signed off on that concept.
Sent 4: The President said he remembered such a conversation, and that it reminded him of when he had been an interceptor pilot.
Sent 5: The President emphasized to us that he had authorized the shootdown of hijacked aircraft.
Sent 6: The Vice President's military aide told us he believed the Vice President spoke to the President just after entering the conference room, but he did not hear what they said.
Sent 7: Rice, who entered the room shortly after the Vice President and sat next to him, remembered hearing him inform the President, "Sir, the CAPs are up.
Sent 8: Sir, they're going to want to know what to do."Sent 9: Then she recalled hearing him say, "Yes sir."Sent 10: She believed this conversation occurred a few minutes, perhaps five, after they entered the conference room.
Sent 11: We believe this call would have taken place sometime before 10:10 to 10:15.
Sent 12: Among the sources that reflect other important events of that morning, there is no documentary evidence for this call, but the relevant sources are incomplete.
Sent 13: Others nearby who were taking notes, such as the Vice President's chief of staff, Scooter Libby, who sat next to him, and Mrs. Cheney, did not note a call between the President and Vice President immediately after the Vice President entered the conference room.
Sent 14: At 10:02, the communicators in the shelter began receiving reports from the Secret Service of an inbound aircraft-presumably hijacked-heading toward Washington.
Sent 15: That aircraft was United 93.
Sent 16: The Secret Service was getting this information directly from the FAA.
Sent 17: The FAA may have been tracking the progress of United 93 on a display that showed its projected path to Washington, not its actual radar return.
Sent 18: Thus, the Secret Service was relying on projections and was not aware the plane was already down in Pennsylvania.
Question: Why was the Secret Service's information about United 93 flawed? (A) No evidence (B) Sources are incomplete (C) The Secret Service Didn't have access to FAA information (D) The Secret Service was relying on projections from the FAA and was not aware the plane was already down in Pennsylvania (E) The Secret Service got information directly from the hijackers (F) They were getting this information directly from the FAA. The FAA may have been tracking the progress of United 93 on a display that showed its projected path to Washington, not its actual radar return. They were basing their information on projections (G) Based on projected path (H) Not based on radar return (I) The Secret Service received its information from the CIA.
Example Output:
D, F, G, H.