instruction:
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.
question:
Paragraph- Sent 1: The film opens with Sunita , a medical student , and her friends working on a project about the human brain .
Sent 2: She wants to investigate the curious case of Sanjay Singhania , a notable city businessman , who is reported to have anterograde amnesia .
Sent 3: Her professor denies access to Sanjay's records as it is currently under criminal investigation .
Sent 4: Sunita , nonetheless , decides to investigate the matter herself .
Sent 5: Sanjay is introduced as he brutally murders a man .
Sent 6: He takes a Polaroid picture of the man , and writes on it '' done '' .
Sent 7: It is revealed that Sanjay has anterograde amnesia where he loses his memory every 15 minutes .
Sent 8: Sanjay uses a system of photographs , notes , and tattoos on his body to recover his memory after each cycle .
Sent 9: It is revealed that Sanjay is ultimately out to avenge the death of his sweetheart Kalpana , and that he is systematically killing the people who were responsible for it .
Sent 10: His main target is '' Ghajini '' , a notable social personality in the city .
Sent 11: Police Inspector Arjun Yadav , on the case of the serial murders , tracks Sanjay down to his flat and attacks and disables him .
Sent 12: Yadav finds two diaries where Sanjay has chronicled the events of 2005 and 2006 .
Sent 13: The film flashes back to 2005 as Yadav reads the diary .
Sent 14: Sanjay Singhania is shown as the owner of the Air Voice mobile telephone company .
Sent 15: In the course of his business , Sanjay sends his men to meet Kalpana , a struggling model , about putting up a billboard above her apartment .
Sent 16: The owner of Kalpana's advertising firm misinterprets this as a romantic advance , and in view of a possible lucrative Air Voice ad campaign and other benefits , encourages Kalpana to accept the overture .
Question: Which person investigates the case of Sanjay Singhania? (A) Sanjay (B) Sunita (C) The professor (D) Ghajini (E) Kalpana.
answer:
B.

question:
Paragraph- Sent 1: Conduction is the transfer of thermal energy.
Sent 2: It occurs between objects or substances that are touching.
Sent 3: Thermal conductors are materials that are good conductors of heat.
Sent 4: Thermal insulators are materials that are poor conductors of heat.
Sent 5: Both conductors and insulators have important uses.
Sent 6: Convection is the transfer of thermal energy.
Sent 7: This occurs as particles move within a fluid.
Sent 8: The fluid may be a liquid or a gas.
Sent 9: The particles within the fluid transfer energy by moving from warmer to cooler areas.
Sent 10: They move in loops.
Sent 11: These loops are called convection currents.
Sent 12: Radiation is the transfer of thermal energy by waves.
Sent 13: These waves can travel through empty space.
Sent 14: When the waves reach objects, the heat is transferred to the objects.
Sent 15: Radiation is how the Sun warms the Earths surface.
Question: In order for Convection to happen, should you use a conductor or an insulator? (A) An insulator (B) A conductor because insulators are bad conductors of heat (C) A conductor.
answer:
B, C.

question:
Paragraph- Sent 1: How can you describe your location?
Sent 2: You might use a familiar system.
Sent 3: You might say, 'I live at 1234 Main Street, Springfield, Ohio.' You could also say, 'I live right behind the Elementary School.' This method uses the school as a point of reference.
Sent 4: Another example is, I am at the corner of Maple Street and Main Street. Both streets may be a good reference for anyone living in your town.
Sent 5: Scientists must be able to pinpoint a feature they are studying.
Sent 6: Scientists use a special system to describe locations.
Sent 7: They use latitude and longitude as a reference.
Sent 8: Lines of latitude and longitude form a grid.
Sent 9: You may have used a grid system while doing graphing.
Sent 10: This grid is centered on a reference point.
Sent 11: Zero latitude is the equator.
Sent 12: Lines of latitude run east to west.
Sent 13: They divide the Earth from North to South.
Sent 14: Lines of longitude run from north to south.
Sent 15: They divide the Earth from East to West.
Sent 16: Zero longitude runs through Greenwich, England.
Sent 17: You may have heard the term, Greenwich Mean Time, or GMT.
Sent 18: The system of latitude and longitude works well for objects that do not move.
Question: Where are zero longitude and latitude located? (A) Equator and Greenwich, England (B) Greenwich, England (C) Brussels (D) Greenland (E) Zero Longitude runs through Greenwich, England while zero latitude runs along the equator (F) North Pole and Antarctica (G) Equator.
answer:
A, B, E.