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 Input:
Paragraph- Sent 1: Joe's parents are farmers and they have a huge farm with cows, chickens, and ducks.
Sent 2: Joe loves the farm and all the things he gets to play around and play on.
Sent 3: One day, Joe's father told him not to get near a tractor that was sitting in the field.
Sent 4: His father was worried that Joe would climb on it and hurt himself.
Sent 5: Joe went out to the field and was feeding the horses and cows.
Sent 6: When he was done, he saw the tractor his father told him not to get near.
Sent 7: He knew that climbing on the tractor wouldn't hurt anything, so he did.
Sent 8: He climbed on to the seat and sat there.
Sent 9: Then, he pretended he was his father and pretended that he was driving the tractor.
Sent 10: Joe's father saw him playing on the tractor and called for him.
Sent 11: Joe heard his father calling for him and got off the tractor really fast.
Sent 12: When he did that, he fell off and hurt his arm.
Sent 13: Joe was in pain and his father came running to check on him and picked him up and sat him on a bench and asked him why he did that.
Sent 14: Joe looked at his father and said, "I wanted to be like you."Sent 15: Joe's father gave him a hug and asked him if he wanted to ride with him on the tractor.
Sent 16: Joe did and after he got a bandage on his arm, he and his father rode in the field on the tractor.
Question: What had he just finished doing when he saw the tractor (A) Playing around the farm (B) Feeding the chickens and ducks (C) Talking to his father (D) Feeding the horses and cows.

Ex Output:
D.

Ex Input:
Paragraph- Sent 1: Representing yourself in court can be a tricky endeavor.
Sent 2: There are confusing legal terms to learn, strict procedures to follow and volumes of case law that often need to be understood to prepare a case.
Sent 3: Lake County officials and a private agency that assists indigent litigants in Illinois want to make the practice easier by creating a self-help center for people who choose to represent themselves in legal matters.
Sent 4: The center, which will be housed in the law library at the main courthouse in Waukegan, could open later this summer.
Sent 5: "I think it's going to be extremely helpful," Court Administrator Bob Zastany said.
Sent 6: "There is a population out there that will take advantage of this resource."Sent 7: The self-help center will be the only one of its kind in the county.
Sent 8: Only a few operate nationwide, officials said.
Sent 9: The project is the work of Lake County circuit court officials and Prairie State Legal Services, a statewide agency with an office in Waukegan that provides information and legal assistance to poor and elderly Illinois residents.
Sent 10: The organization has received a $25,000 grant from the Illinois Equal Justice Foundation, a nonprofit group that funds programs designed to increase access to legal information and assistance, to help pay for the effort.
Sent 11: Prairie State will share the money with the county.
Sent 12: The county's law library is on the first floor of the governmental center at 18 N. County St. The new self-help center will be designed to help litigants find the information they need to properly represent themselves in court, an undertaking that can be complicated and confusing.
Sent 13: "Some people can do OK on their own, and some people can do OK with some help," said Linda Rothnagel, the managing attorney for Prairie State Legal Services.
Sent 14: "But other people can't do it.
Sent 15: It's not always easy."Sent 16: Self-representation is a right affirmed by the U.S. Supreme Court.
Sent 17: The practice is far more common in civil matters than in criminal cases.
Sent 18: In fact, self-represented litigants - formally called "pro se" in Latin, or "for oneself" - in criminal defenses are so rare that statistics about the practice generally are not kept, legal experts say.
Question: Why can representing yourself in court be "a tricky endeavor"? (A) Strict procedures (B) Confusing legal terms, strict procedures and the need to understand case law (C) Because County officials and private agencies want to make it "a tricky endeavor" (D) Because of the legal terms and strict procedures involved as well as volumes of case law to understand (E) Because of the secret procedures (F) Confusing legal terms (G) Because of the new terms to learn, procedures to follow, and case law to understand (H) Because of non availability of law books (I) Because of the non-confusing legal language (J) Volumes of case law (K) Because there are procedures and case law to memorize, and strict legal requirements to understand.

Ex Output:
A, B, D, F, G, J.

Ex Input:
Paragraph- Sent 1: (CNN) -- A Christian evangelical group said Thursday that a Bible school -- backed by American evangelist Franklin Graham -- was destroyed in the latest bombing raid to hit South Kordofan, an oil-rich Sudanese province that borders the newly created independent country of South Sudan.
Sent 2: At least eight bombs were dropped in the area Wednesday during the school's first day of classes, according to a statement by Samaritan's Purse, Graham's Christian humanitarian group, which supports the school.
Sent 3: Two bombs landed inside the compound -- located in the region's Nuba Mountains -- destroying two Heiban Bible College buildings and igniting grass fires across the area, the group said in a statement No injuries were reported.
Sent 4: "It was a miracle that no one was injured," the statement added.
Sent 5: Graham, who has called on the international community to take out Sudan's air assets and establish a no-fly zone in the region, said in a statement Thursday that he blamed Sudan's air force for the strike.
Sent 6: At least four churches have been destroyed since August, the group said.
Sent 7: "We are deeply concerned for the welfare and lives of the people of South Kordofan and we condemn the bombing of churches and Christian facilities," added Graham, son of the famed Rev. Billy Graham.
Sent 8: More than 78,000 people have fled South Kordofan and Blue Nile states since August of last year after an armed rebellion took root, the United Nations reported.
Sent 9: The Sudanese government is thought to have responded to the rebellion by conducting sustained air raids with the use of Russian-made Antonov bombers, which have raised concerns over civilian casualties.
Sent 10: Decades of civil war between the north and south, costing as many as 2 million lives, formally ended with a U.S.-brokered peace treaty in 2005.
Question: Who did Franklin Graham blame for the bombs that destroyed the Bible school? (A) Russian bommers (B) The Sudan air force (C) Usa.

Ex Output:
B.