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.

Ex Input:
Paragraph- Sent 1: (CNN) -- English club Chelsea have completed the signing of Oriol Romeu from Spanish and European champions Barcelona.
Sent 2: The 19-year-old is currently playing for Spain at the World Under-20 Championships in Colombia and has signed a four-year deal with last season's Premier League runners-up.
Sent 3: The deal is worth $7 million and includes a buy back clause, set at $14 million after the first year and $21 million after the second.
Sent 4: Romeu started his career at Barcelona's city rivals Espanyol before joining the Camp Nou academy in 2004.
Sent 5: The midfielder, who can also play in central defence, made his debut for Barcelona in last season's Spanish Supercup match with Seville and got his first taste of league action against Deportivo in May 2010.
Sent 6: He has played 90 minutes in both of Spain's games at the World Under-20 Championships, when they beat Costa Rica and Ecuador.
Sent 7: Chelsea official web site confirmed the signing and said Romeu is "renowned for his strength and his expansive passing ability."Sent 8: Another player leaving Barcelona is Jeffren Suarez after he agreed to join Sporting Lisbon.
Sent 9: The Portuguese outfit have paid $5 million for the 23-year-old which, like the Romeu deal, includes a buy back option.
Sent 10: Jeffren joined Barca from Tenerife in 2004 and made his debut for the Catalan club in the 2006-07 season.
Question: In Oriol Romeu's debut how many minutes did he play? (A) 60 minutes (B) 20 minutes (C) 90 minutes (D) 30 minutes.

Ex Output:
C.

Ex 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.

Ex Output:
B, D, E.

Ex Input:
Paragraph- Sent 1: (CNN) -- A Christian evangelical group said Thursday that a Bible school -- backed by American evangelist Franklin Graham -- was destroyed in the latest bombing raid to hit South Kordofan, an oil-rich Sudanese province that borders the newly created independent country of South Sudan.
Sent 2: At least eight bombs were dropped in the area Wednesday during the school's first day of classes, according to a statement by Samaritan's Purse, Graham's Christian humanitarian group, which supports the school.
Sent 3: Two bombs landed inside the compound -- located in the region's Nuba Mountains -- destroying two Heiban Bible College buildings and igniting grass fires across the area, the group said in a statement No injuries were reported.
Sent 4: "It was a miracle that no one was injured," the statement added.
Sent 5: Graham, who has called on the international community to take out Sudan's air assets and establish a no-fly zone in the region, said in a statement Thursday that he blamed Sudan's air force for the strike.
Sent 6: At least four churches have been destroyed since August, the group said.
Sent 7: "We are deeply concerned for the welfare and lives of the people of South Kordofan and we condemn the bombing of churches and Christian facilities," added Graham, son of the famed Rev. Billy Graham.
Sent 8: More than 78,000 people have fled South Kordofan and Blue Nile states since August of last year after an armed rebellion took root, the United Nations reported.
Sent 9: The Sudanese government is thought to have responded to the rebellion by conducting sustained air raids with the use of Russian-made Antonov bombers, which have raised concerns over civilian casualties.
Sent 10: Decades of civil war between the north and south, costing as many as 2 million lives, formally ended with a U.S.-brokered peace treaty in 2005.
Question: Who dropped at least eight bombs in South Kordofan? (A) Friends (B) Sudan's air force (C) Usa (D) North sudan.

Ex Output:
B.