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.

Example Input: 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 people can be accounted for after the search of the ship? (A) 193 (B) 66 (C) 79 can be accounted for (D) 20 (E) 114 dead and 79 survivors can be accounted for (F) 28.
Example Output: A, E.

Example Input: 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: What is radiation and how does it move? (A) It is a conductor that moves through liquid (B) Radiation is the transfer of thermal energy in waves thru empty space (C) Heat transferred to objects by waves (D) Radiation conducts heat (E) Radiation is the transfer of thermal energy by waves and the waves travel through empty space (F) It is an object that travels through insulators (G) It is a transfer of thermal energy by waves.
Example Output: B, C, E, G.

Example Input: Paragraph- Sent 1: Fact: I wasn't dead.
Sent 2: After I realized this, I left my quarters.
Sent 3: The lightscreen provided had informed me when and where official meals were taking place, but I hadn't bothered to acknowledge the invitations.
Sent 4: It hadn't seemed relevant, somehow, given that I was still reeling over the explosion, the deaths of my crewmates, and the rescue.
Sent 5: I've heard there are a number of stages of grief and shock; I guess I was working my way through them.
Sent 6: Food was delivered to my quarters.
Sent 7: Initially, I couldn't figure out whyI hadn't requested any be sent.
Sent 8: Then I realized, someone must have noticed I hadn't left, and was nice enough to send food my way.
Sent 9: The accompanying bottle of wine was a nice touch.
Sent 10: I must have consumed it, too, because later on, the plates and the bottle were both empty.
Sent 11: I spent a lot of time lying on my back on the bed, staring up at the little etched swirls in the ceiling, or slumped in the old-fashioned armchair, staring out the windows at the stars.
Sent 12: I did a lot of staring and not moving.
Sent 13: Man, was it good to be done with that stage.
Sent 14: It was time to find out what hell looked like.
Question: Why was he grief and shock, to where the food was delivered? (A) He had lost his wife (B) The death of his crewmates (C) He is feeling that he is working through his dead crew mates in the explosion and the food delivered to the quarters.
Example Output:
B, C.