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 Q]: Paragraph- Sent 1: The French have always wanted to know what it means to be aFrenchman.
Sent 2: Their history has been a constant quest for national identity: a conflict between strong regional loyalties and central authority.
Sent 3: In about 2000b.c.
Sent 4: Celtic tribes probably from eastern Europe came looking for greener pastures in the areas that are now Franche-Comte, Alsace, and Burgundy.
Sent 5: At the same time, migrants from the Mediterranean countries were trickling into the south.
Sent 6: The first recorded settlement was the trading post set up by Phocaean Greeks from Asia Minor at Massalia (Marseilles) around 600b.c.
Sent 7: , followed by other ports at Hyeres, Antibes, and Nice.
Sent 8: But the Greeks developed few contacts with the interior beyond a little commerce in olives and wine with the Celts of Burgundy.
Sent 9: When their position was threatened by Ligurian pirates at sea and warlike tribes from inland, the merchants of Marseilles called on Rome for help.
Sent 10: From Gaul to France In 125b.c.
Sent 11: , the Romans came in force, conquered the "Gallic barbarians," and set up a fortress at Aquae Sextiae (Aix-en-Provence).
Sent 12: They took advantage of this new stronghold to create Provincia (now Provence), stretching from the Alps to the Pyrenees, in order to guarantee communications between Italy and Spain.
Sent 13: When this province was endangered by fresh attacks from the north, Julius Caesar himself took charge, conquering practically the whole of Gaul by 50b.c.
Sent 14: Caesar drew Gaul's northeastern frontier at the Rhine, taking in present-day Belgium, and warned that the Germanic tribes across the river the Franks (after whom France is named), Alamans, and Saxons would always threaten the security of the frontier.
Sent 15: The Romanization of Gaul sent the most energetic warriors to defend the outposts of the empire while their families settled down to work the land or build towns such as Lyon, Orange, Arles, and Nimes, and the first great highways between them.
Sent 16: At the same time, merchants built up a thriving trade with the rest of the Roman Empire.
Sent 17: The pattern for the peasantry and bourgeoisie of France was thus established.
Sent 18: Christianity was introduced into Gaul in the first century a.d.
Question: When did the Romans set up a fortress at Aquae Sextiae (Aix-en-Provence)? (A) 50 B.C (B) 50b.c (C) 125 B.C (D) 1999 (E) 125b.c.
[EX A]: C, E.

[EX Q]: Paragraph- Sent 1: Right after the Pentagon was hit, NEADS learned of another possible hijacked aircraft.
Sent 2: It was an aircraft that in fact had not been hijacked at all.
Sent 3: After the second World Trade Center crash, Boston Center managers recognized that both aircraft were transcontinental 767 jetliners that had departed Logan Airport.
Sent 4: Remembering the "we have some planes" remark, Boston Center guessed that Delta 1989 might also be hijacked.
Sent 5: Boston Center called NEADS at 9:41 and identified Delta 1989, a 767 jet that had left Logan Airport for Las Vegas, as a possible hijack.
Sent 6: NEADS warned the FAA's Cleveland Center to watch Delta 1989.
Sent 7: The Command Center and FAA headquarters watched it too.
Sent 8: During the course of the morning, there were multiple erroneous reports of hijacked aircraft.
Sent 9: The report of American 11 heading south was the first; Delta 1989 was the second.
Sent 10: NEADS never lost track of Delta 1989, and even ordered fighter aircraft from Ohio and Michigan to intercept it.
Sent 11: The flight never turned off its transponder.
Sent 12: NEADS soon learned that the aircraft was not hijacked, and tracked Delta 1989 as it reversed course over Toledo, headed east, and landed in Cleveland.
Sent 13: But another aircraft was heading toward Washington, an aircraft about which NORAD had heard nothing: United 93.
Sent 14: United Airlines Flight 93 FAA Awareness.
Sent 15: At 9:27, after having been in the air for 45 minutes, United 93 acknowledged a transmission from the Cleveland Center controller.
Sent 16: This was the last normal contact the FAA had with the flight.
Sent 17: Less than a minute later, the Cleveland controller and the pilots of aircraft in the vicinity heard "a radio transmission of unintelligible sounds of possible screaming or a struggle from an unknown origin."Sent 18: The controller responded, seconds later: "Somebody call Cleveland?"This was followed by a second radio transmission, with sounds of screaming.
Question: Which air traffic center communicated with United 93? (A) Delta (B) Boston Center (C) Cleveland Center (D) Logan Airport (E) Cleveland Center controller (F) Cleveland.
[EX A]: C, E, F.

[EX Q]: Paragraph- Sent 1: Moscow (CNN) -- Divers have completed their search of a Russian cruise ship that sank last weekend with the loss of many lives, the Emergency Situations Ministry told CNN Friday.
Sent 2: The official death toll has reached 114 -- including 66 women, 28 children and 20 men, the ministry said.
Sent 3: The bodies of 15 people are still missing.
Sent 4: There were 208 people on the "Bulgaria" at the time of the accident Sunday, of whom 79 were rescued.
Sent 5: Divers have checked all the boat's compartments, the ministry said, and are now looking for more bodies around the boat as well downstream on the Volga River, where they could have been carried by the current.
Sent 6: The area where search efforts continue has been enlarged to 200 kilometers (125 miles) from the scene, Russian Transport Minister Igor Levitin said at a briefing Friday.
Sent 7: Preparations are under way for the cruise ship to be raised from the river bottom in the coming days.
Sent 8: Two large boat cranes, one from Moscow and another one from Volgograd, which will be used for the lifting, are on the way to the accident site.
Sent 9: "We have asked the Emergency Situations Ministry to keep 23 divers at the scene to continue the search for bodies even during the lifting operation," Levitin said.
Sent 10: Specialist military divers were brought in mid-week to aid in the search efforts.
Sent 11: Four people face criminal charges over the sinking of the ship, which Russian media have called the most devastating river accident in the country's history.
Question: How many had the official death toll reached? (A) 66 (B) It was 114 (C) The official death toll is 114 (D) The death toll has reached 208 (E) 20 (F) 28.
[EX A]:
B, C.