TASK DEFINITION: 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.
PROBLEM: Paragraph- Sent 1: The city of Edinburgh grew up around the steep, ragged cliff of the Castle Rock and its easily defended summit.
Sent 2: Archaeological excavations have revealed evidence of habitation here as long ago as 900 b.c.
Sent 3: Very little, however, is known about the Rock and its inhabitants in the centuries between its first occupation and the time of the MacAlpin kings.
Sent 4: A few shadowy details have been left to us by the Romans and by an epic poem from the seventh century.
Sent 5: Romans and Britons The Romans invaded Scotland in a.d.
Sent 6: 7884, where they met a fierce group called the Picts, whom they drove north.
Sent 7: They consolidated their gains by building Antonine's Wall across the waist of Scotland between the Firth of Forth and the River Clyde in about a.d.
Sent 8: Roman legions encountered the strongholds of the Castle Rock and Arthur's Seat, held by a tribe of ancient Britons known as the Votadini.
Sent 9: Little is recorded about this group, but they were probably the ancestors of the Gododdin, whose feats are told in a seventh-century Old Welsh manuscript.
Sent 10: The capital of the Gododdin was Din Eidyn (the "Fort of Eidyn," almost certainly the Castle Rock), whose name lives on in the Edin- of Edinburgh.
Sent 11: Din Eidyn fell to the Angles in 638 and became part of the Anglian kingdom of Northumbria.
Sent 12: It was the first of many times that the Fort of Eidyn would change hands between the kingdoms of the north and the south.
Sent 13: The MacAlpin Kings Four distinct peoples once inhabited the land now known as Scotland: the Picts in the north, the Britons in the southwest, the invading Angles in the southeast, and the Scots in the west.
Sent 14: The Scots were Gaelic-speaking immigrants from the north of Ireland.
Sent 15: Kenneth MacAlpin, who ruled as king of Scots at Dunadd, acquired the Pictish throne in 843, uniting Scotland north of the River Forth into a single kingdom.
Sent 16: He moved his capitalalong with the Stone of Destiny (on which Scottish kings were crowned)to the sacred Pict site of Scone, close to Perth.
Sent 17: His great-great-great-grandson, Malcolm II (10051034), defeated the Angles at the Battle of Carham in 1018 and extended Scottish territory as far south as the River Tweed.
Question: What languages were spoken in old time Scotland that are listed in the article? (A) Welsh (B) Greek (C) Gaelic (D) Latin (E) Angels (F) English (G) Pictish (H) Romanian (I) Scottish.

SOLUTION: C.

PROBLEM: Paragraph- Sent 1: At 9:48, a representative from the White House shelter asked if there were any indications of another hijacked aircraft.
Sent 2: The deputy director for operations mentioned the Delta flight and concluded that "that would be the fourth possible hijack."Sent 3: At 9:49, the commander of NORAD directed all air sovereignty aircraft to battle stations, fully armed.
Sent 4: At 9:59, an Air Force lieutenant colonel working in the White House Military Office joined the conference and stated he had just talked to Deputy National Security Advisor Stephen Hadley.
Sent 5: The White House requested (1) the implementation of continuity of government measures, (2) fighter escorts for Air Force One, and (3) a fighter combat air patrol over Washington, D.C.
Sent 6: By 10:03, when United 93 crashed in Pennsylvania, there had been no mention of its hijacking and the FAA had not yet been added to the teleconference.
Sent 7: The President and the Vice President The President was seated in a classroom when, at 9:05, Andrew Card whispered to him: "A second plane hit the second tower.
Sent 8: America is under attack."Sent 9: The President told us his instinct was to project calm, not to have the country see an excited reaction at a moment of crisis.
Sent 10: The press was standing behind the children; he saw their phones and pagers start to ring.
Sent 11: The President felt he should project strength and calm until he could better understand what was happening.
Sent 12: The President remained in the classroom for another five to seven minutes, while the children continued reading.
Sent 13: He then returned to a holding room shortly before 9:15, where he was briefed by staff and saw television coverage.
Sent 14: He next spoke to Vice President Cheney, Dr. Rice, New York Governor George Pataki, and FBI Director Robert Mueller.
Sent 15: He decided to make a brief statement from the school before leaving for the airport.
Sent 16: The Secret Service told us they were anxious to move the President to a safer location, but did not think it imperative for him to run out the door.
Sent 17: Between 9:15 and 9:30, the staff was busy arranging a return to Washington, while the President consulted his senior advisers about his remarks.
Sent 18: No one in the traveling party had any information during this time that other aircraft were hijacked or missing.
Sent 19: Staff was in contact with the White House Situation Room, but as far as we could determine, no one with the President was in contact with the Pentagon.
Question: Who went to a holding room shortly before 9:15 (A) Andrew Card (B) The President (C) Bill Clinton (D) Rick Perry (E) NORAD (F) George Bush.

SOLUTION: B, F.

PROBLEM: Paragraph- Sent 1: You know that friction also causes heat.
Sent 2: Think about when you rub your hands together.
Sent 3: It is friction that makes them warm.
Sent 4: But why does this happen?
Sent 5: Friction causes the molecules on rubbing surfaces to move faster.
Sent 6: Faster moving particles have more heat energy.
Sent 7: Heat from friction can be useful.
Sent 8: Can you think of other places where you might find friction?
Sent 9: Friction also lets you light a match.
Sent 10: Heat from friction can also cause problems.
Sent 11: It can cause a car to overheat.
Sent 12: To reduce friction, oil is added to the engine.
Sent 13: Oil coats the surfaces of moving parts.
Sent 14: This coating of oil makes them slippery.
Sent 15: When things are slippery there is less friction.
Sent 16: Have you ever seen a sign that says, slippery when wet?
Sent 17: This too has to do with friction.
Sent 18: Water, like oil, can reduce friction.
Sent 19: The wet surface may allow your shoes to slide more easily.
Question: If you try to warm your hands by rubbing them together when they are wet, will they warm up as well as rubbing them together when they're dry? (A) No (B) Sometimes.

SOLUTION:
A.