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 idea that Earth is a magnet is far from new.
Sent 2: It was first proposed in 1600 by a British physician named William Gilbert.
Sent 3: Knowing it acts like a magnet is one thing.
Sent 4: Knowing why it acts like a magnet is more difficult.
Sent 5: In fact, finding out why is a fairly recent discovery.
Sent 6: To find out why required new technology.
Sent 7: It was the seismograph that made it possible to learn why the Earth acted like a magnet.
Sent 8: Seismograph are used to study earthquakes.
Sent 9: By studying earthquake waves they were able to learn about Earths interior.
Sent 10: They discovered that Earth has an inner and outer core.
Sent 11: The outer core consists of liquid metals, mainly iron and nickel.
Sent 12: Scientists think that Earths magnetic field is generated here.
Sent 13: It is caused by the motion of this liquid metal.
Sent 14: The liquid metal moves as Earth spins on its axis.
Question: When the Earth spins, what are the main liquid metals it is causing to move? (A) Magnet (B) Iron and nikel (C) Iron and nickel (D) Steel and bronze.
[EX A]: B, C.

[EX Q]: Paragraph- Sent 1: (CNN) -- Shain Gandee, one of the stars of the MTV reality show "Buckwild," has been found dead along with two other people in Kanawha County, West Virginia, authorities said Monday.
Sent 2: "This is a very sad and tragic event," Kanawha County Commissioner Kent Carper said.
Sent 3: "We live in a very small community.
Sent 4: Our thoughts and prayers are with the Gandee family."Sent 5: Gandee, 21, was found dead in a vehicle along with his uncle, David Dwight Gandee, 48, and Donald Robert Myers, 27, authorities said.
Sent 6: 'Buckwild' producer talks about the show "Earlier this day after releasing information Shain Gandee was missing, the Kanawha County Sheriff's Office received word of a disabled vehicle in a wooded area near Thaxton Hollow, Sissonville, Kanawha County WV," said a statement from the Sheriff's Office.
Sent 7: "Deputies and members of the Sissonville Volunteer Fire Department used all terrain vehicles to access that vehicle, a 1984 Ford Bronco belonging to the Gandee family.
Sent 8: The vehicle was in a muddy area along a worn path.
Sent 9: Inside were the bodies of three people."Sent 10: In a subsequent release, the Sheriff's Office said the vehicle was partially submerged in mud.
Sent 11: It was uneven but upright; its muffler was below the surface.
Sent 12: Mud covered the lower part of the Bronco's passenger side door, but the driver's side, where the younger Gandee sat, was free, the Sheriff's Office said.
Sent 13: Gandee was happy with life before death He was one of the nine cast members of "Buckwild."Sent 14: The show follows a group of young adults trying to have fun in Sissonville, West Virginia, pulling stunts such as turning a dump truck into a swimming pool or just riding around the woods on their all-terrain vehicles.
Sent 15: Gandee was billed as a former high school prom king who had done "every job from coal mining to being a garbage man.".
Question: Who was involved in the investigation of Gandee's death? (A) His uncle, David Dwight Gandee, and Donald Robert Myers (B) The Buckwild producers and the Sheriff's Office (C) Kanawha County Comissioner Kent Carper, the Sheriff's office and the Volunteer Fire Department (D) The eight castmembers from Buckwild (E) Kanawha County Sheriff's Office, Sissonville Volunteer Fire Department.
[EX A]: C, E.

[EX Q]: Paragraph- Sent 1: In remarks during a ribbon-cutting ceremony here on Wednesday, Gov. George E. Pataki said he expected the facility to generate thousands more jobs in the Hudson Valley area for contractors and suppliers catering to the factory.
Sent 2: He praised IBM for being "a critical partner in our economic development efforts" in New York state.
Sent 3: In a brief speech, Samuel J. Palmisano, IBM's chief executive, emphasized that it was important to make long-term investments despite the current slump in the technology business.
Sent 4: "To play to win in technology, you innovate and you lead," he said.
Sent 5: But manufacturing technology products is a costly and cyclical business.
Sent 6: In June, IBM announced that it was taking a charge of more than $2 billion against earnings.
Sent 7: The largest single reasons for the charge were the cost of getting out of the business of manufacturing hard disks for storage, which it sold to Hitachi, and closing down some of its older semiconductor operations.
Sent 8: But Kelly said the demand for advanced chips, like those produced at IBM's facility in Burlington, Vt., is strong.
Sent 9: "I need more capacity in that end of the market," he said, "and this is factory is critical to meeting that growing demand."Sent 10: If IBM has miscalculated the demand, it will suffer badly as both the high operating costs and depreciation on the huge capital investment for the East Fishkill factory drag down earnings.
Sent 11: But industry analysts said the plant should be insulated from a falloff in one or a few segments of the semiconductor market.
Question: What company did George Pataki praise for being a critical partner in economic development in New York? (A) IBM (B) Hitachi (C) Toshiba (D) Apple.
[EX A]:
A.