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: What if you could drain all of Earths oceans?
Sent 2: What would it look like?
Sent 3: You might be really surprised.
Sent 4: You see that the surface has two main features.
Sent 5: It has continents and ocean basins.
Sent 6: Continents are large land areas.
Sent 7: These are the areas that are mostly above sea level.
Sent 8: Ocean basins extend from the edges of continents.
Sent 9: They include the ocean floor and Earths deep ocean trenches.
Sent 10: You will also notice the ocean floor is not flat.
Sent 11: It too has many Continents are much older than ocean basins.
Sent 12: Some rocks on the continents are billions of years old.
Sent 13: Ocean basins may only be millions of years old.
Sent 14: Because the continents are so old, a lot has happened to them!
Sent 15: As we view the land around us, we see landforms.
Sent 16: Landforms are physical features on Earths surface.
Sent 17: These features change over time, but how?
Sent 18: There are actually two types of forces at work.
Question: Which are older: continents or ocean basins? (A) Surface (B) Ocean basins (C) Continents.

Ex Output:
C.

Ex Input:
Paragraph- Sent 1: Sam Farragut is a sociopathic business executive in Southern California who forces a team of advertising agency employees to embark on a dangerous dirtbike trip to the Baja California desert in order to compete for his business .
Sent 2: The men are Warren Summerfield , a suicidal middle-aged ad executive who has been fired from the agency ; the straightlaced Paul McIlvain who is inattentive to his wife , and brash art designer Maxon who feels suddenly trapped after his girlfriend announces she is pregnant .
Sent 3: There are numerous long sequences of motorcycle riding on desert backroads .
Sent 4: Summerfield has been having an affair with McIlvian's wife .
Sent 5: He has not told his wife that he was fired and is simply serving out his tenure at the agency while looking for a new position .
Sent 6: His wife is actually aware of the affair .
Sent 7: Farragut convinces the ad men to make the motorcycle journey on the pretext of looking for a location to shoot a commercial .
Sent 8: In reality , Farragut is reckless and looking to involve the men in spontaneous edgy adventure of his own manipulation .
Sent 9: After they leave , McIlvain's wife suspects that Summerfield is planning to kill himself for the insurance money , but she can not convince Summerfield's wife to instigate a search .
Sent 10: The four men travel deeper into Mexico on isolated dirt roads .
Sent 11: At one point Summerfield contemplates plunging off a cliff .
Sent 12: After being humiliated by a young American couple in a Baja bar , Farragut tracks them down on the beach while accompanied by Maxon .
Question: What is the first name of the man who tracks down the young American couple on the beach? (A) McIlvian's wife (B) Maxon (C) Mcllvian (D) Summerfield (E) Farragut (F) The young American couple (G) The girlfriend (H) Paul McIlvain (I) Paul.

Ex Output:
B, E.

Ex Input:
Paragraph- Sent 1: The mighty fane, with its three massive towers, rises majestically over the red roofs of the town.
Sent 2: Its most striking feature is the great Norman screen, running up without buttresses or projections to the parapet and hiding the bases of the square, richly decorated towers of the west front.
Sent 3: The plain centre of the screen is the work of Remigius, the first bishop.
Sent 4: The rest of it is relieved with rich arcading of Late Norman and Early English periods.
Sent 5: The wooden spires which crowned the towers were removed in 1807.
Sent 6: In 1192 Hugh of Avalon determined to rebuild the Norman building of Remigius, which an earthquake had shaken.
Sent 7: To him we owe the choir and eastern transept.
Sent 8: His successors completed the western transept and began the west end of the nave.
Sent 9: So much money had to be spent in rebuilding the central tower, which fell in 1239, that the canons could not rebuild the nave entirely, but had to incorporate the Norman end by Remigius.
Sent 10: Unfortunately the axis of the west front does not correspond to that of the nave, which is too wide for its height.
Sent 11: The low vaulting is a serious defect in the choir built by St. Hugh, but of the superb beauty of the Angel Choir, which encloses his shrine, there can be no doubt.
Sent 12: In its richness of sculpture it is one of the masterpieces of Gothic architecture in England.
Sent 13: The interior of the cathedral is remarkable for the harmony of its style, which is Lancet-Gothic, and the dim lighting of the nave only adds to its impressiveness.
Question: How many times the building of Remigius was rebuilt? (A) 2 (B) At least 2 (C) 1.

Ex Output:
B.