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: 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: How long after Sebastiao ascended to the throne did British ships commanded by Francis Drake sack Sagres? (A) 9 (B) 10 (C) 40 years (D) 30 years (E) 29 years (F) 10 year.
Example Output: D.

Example Input: Paragraph- Sent 1: A group of researchers at a remote jungle island outpost discover the natives are practicing voodoo and black magic .
Sent 2: After killing the local priest , a voodoo curse begins to raise the dead to feed on the living in retribution .
Sent 3: The researchers on the island are killed by the newly risen zombies , except for Jenny , the daughter of a scientist couple .
Sent 4: She escapes , protected by an enchanted necklace charm given to her by her mother shortly before her death .
Sent 5: She returns years later as an adult with a group of mercenaries to attempt to uncover what happened to her parents .
Sent 6: Shortly after arriving at the island their boat 's engine dies , stranding them .
Sent 7: Meanwhile elsewhere on the island a trio of hikers discover a cave , the same cave leading to the underground temple where the original curse was created .
Sent 8: After accidentally reviving the curse , the dead once again return to kill any who trespass on their island .
Sent 9: The mercenaries encounter their first zombie , who injures a member of the team .
Sent 10: Taking shelter in the remains of the old research facilities medical quarters they are soon joined by Chuck , the only surviving hiker .
Sent 11: Arming themselves with weapons left behind by the long dead research team , they make their stand as the dead once again rise .
Sent 12: One by one they are injured or killed , one of whom sacrifices himself to blow up the medical facility and his newly undead team members .
Sent 13: Jenny and Chuck flee , the only survivors remaining .
Sent 14: They stumble upon the cave once again , where the zombies appear and attack .
Question: Why didn't Jenny get killed by a zombie? (A) She is the daughter of a scientist couple (B) She had an enchanted necklace (C) She escapes (D) She was protected by an enchanted necklace charm given to her by her mother shortly before her death.
Example Output: B, C, D.

Example Input: Paragraph- Sent 1: He read the telegram again.
Sent 2: In desperation he went back to the long distance booth, but found the line still out of order, and a wire had come giving the details of the damage done by the storm.
Sent 3: It would be several days before communication could be established.
Sent 4: There was no help coming from headquarters, and from the wording of the telegram there seemed to be a reason for their not giving clear details.
Sent 5: He must get a copy of the paper.
Sent 6: Reluctantly he went to the printing office and made known his errand.
Sent 7: Mr. Driggs was delighted to give him the paper--he had it some place, though he very seldom opened any of his exchanges.
Sent 8: He evidently bore Mr. Steadman no ill-will for his plain talk two weeks ago.
Sent 9: With some difficulty he found it, with its wrapper still intact.
Sent 10: It was a loose wrapper, which slipped off and on easily.
Sent 11: Mr. Steadman remarked carelessly that there was an editorial in it to which his attention had been drawn, on hearing which Mr. Driggs turned his head and winked at an imaginary accomplice.
Question: What errand did he go to the printing office for? (A) To get the paper (B) Copy of the paper (C) To make it known (D) To have something printed (E) Another paper.
Example Output:
B.