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: (CNN) -- A federal court jury in Florida convicted seven people of participating in a global child pornography trafficking enterprise, according to the Department of Justice.
Sent 2: Jurors convicted the seven Wednesday of multiple counts of child exploitation, pornography and obstruction of justice.
Sent 3: Members of the organization used Internet news groups to swap and share "illegal images and videos depicting prepubescent children, including toddlers, engaged in various sexual and sadistic acts," prosecutors said.
Sent 4: An indictment filed in the case detailed interactions between group members as they swapped and commented on images.
Sent 5: "My thanks to you and all the others that together make this the greatest group of pedos to ever gather in one place," Freeman wrote in response to one posting, according to the indictment.
Sent 6: And a posting from Castleman, cited in the indictment, read, "Thanks to all for the wonderful material that has been posted."Sent 7: An Australian constable who infiltrated the group in August 2006 was among 50 witnesses testifying at trial.
Sent 8: He told the jury that the group traded more than 400,000 images and videos of child sexual abuse before being dismantled by law enforcement, according to the Justice Department statement.
Sent 9: Each defendant faces a sentence of 20 years to life in prison, fines and the possibility of supervised release for the rest of their lives, authorities said.
Sent 10: The seven will be sentenced April 14.
Sent 11: During the six-day trial, evidence showed the seven participated in what prosecutors called a "well-organized criminal enterprise whose purpose was to proliferate child sex abuse images to its membership during a two-year period."Sent 12: "This was a wide-scale, high-volume, international trafficking enterprise that used sophisticated computer encryption technology and file-sharing techniques," Matthew Friedrich, acting assistant attorney general, said in the statement.
Sent 13: The seven defendants were James Freeman of Santa Rosa Beach, Florida; Gary Lakey of Anderson, Indiana; Marvin Lambert of Indianapolis, Indiana; Neville McGarity of Medina, Texas; Warren Mumpower of Spokane, Washington; Daniel Castleman of Lubbock, Texas; and Ronald White of Burlington, North Carolina, according to the Department of Justice.
Question: Who told the jury that the group traded more than 400,000 images and videos of child sexual abuse? (A) The Department of Justice (B) Castleman (C) The Australian constable (D) The seven defendents (E) Mathew Friedrich.
Example Output: C.

Example Input: Paragraph- Sent 1: Dylan and Jez are two orphans who meet in their twenties and vow to achieve their shared childhood dream of living in a stately home .
Sent 2: In pursuit of this dream they spend their days living in a disused gas holder , spending as little money as possible and conning the upper classes out of their riches .
Sent 3: During one of their biggest cons , their lives are touched by Georgie , who needs money to save the Down's syndrome foundation that her brother attends .
Sent 4: When a con goes wrong , the two find themselves in gaol to be released only after their entire fortune is rendered useless because of a recall of 50 notes .
Sent 5: It is down to an elaborate plan involving Dylan , Jez and Georgie , to break them out of gaol in order to save their dream .
Sent 6: The film , in essence , is part Ealing comedy , part underdog farce with a sequence of madcap adventures set against a striking soundtrack by contemporary Britpop artists .
Sent 7: Unlike straight rom-coms or mainstream comedies of the period Shooting Fish contained a generous blending of fact and fantasy .
Question: Did the con go right or wrong, causing the three men to need an elaborate plan? (A) Wrong, all three men did not went to gaol (B) Wrong, two out of three men went to jail (C) Right.
Example Output: A.

Example Input: Paragraph- Sent 1: Renewable Energy Resource Sunlight Sunlight can be used to heat homes.
Sent 2: It can also be used to produce electricity.
Sent 3: This conversion is made possible by solar cells.
Sent 4: However, solar energy may not always be practical.
Sent 5: Some areas are just too cloudy.
Sent 6: Example Solar panels on the roof of this house generate enough electricity to supply a familys needs.
Sent 7: Moving Water Falling water can have a lot of energy.
Sent 8: Its energy can be converted into kinetic energy.
Sent 9: This energy can turn a turbine and generate electricity.
Sent 10: The water may fall naturally over a waterfall or flow through a dam.
Sent 11: A drawback of dams is that they flood land upstream.
Sent 12: They can also reduce water flow downstream.
Sent 13: Either effect may harm ecosystems.
Sent 14: Wind Wind is moving air.
Sent 15: It has kinetic energy that can do work.
Sent 16: Wind turbines change the kinetic energy of the wind to electrical energy.
Sent 17: Only certain areas of the world get enough steady wind.
Sent 18: Many people also think that wind turbines are noisy and not very nice to look at.
Question: What is the drawback of kinetic energy from hydro power? (A) The drawback is that it may harm ecosystems (B) Hydro power can flood some land and reduce water in other places (C) Turbines are noisy and not very nice to look at (D) The hydro power dams are not very nice to look at (E) Flooding upstream, not enough water downstream (F) Hydro power dams can be noisy.
Example Output:
A, B, C, E.