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: Tim had always a red bike.
Sent 2: His birthday party was coming up and he hoped that his parents would finally get him the bike.
Sent 3: When his friends came over for the party, Tim was very worried that he wouldn't get the bike.
Sent 4: He looked at all the presents and none of them seemed big enough to have a bike in them.
Sent 5: Tim was sad.
Sent 6: When it was time to open the presents he opened them one at a time.
Sent 7: The first present was not a bike.
Sent 8: The second present was not a bike.
Sent 9: The third present was the biggest one.
Sent 10: Tim knew if the bike was going to be in any of the presents it was going to be in this box.
Sent 11: Tim opened it and there was no bike inside.
Sent 12: Just as Tim tried not to look too upset, his Dad brought in the biggest present of them all.
Sent 13: His Dad had been hiding the present all along.
Sent 14: Tim opened it and his new bike was inside the box.
Sent 15: Tim put the bike together with his Dad's help.
Question: Who is mentioned as being at the birthday party? (A) Neighbors (B) A clown, friends (C) Both Parents (D) Tim, his dad (E) Friends (F) Teachers (G) Tim, his friends and his Dad.

Ex Output:
D, E, G.

Ex Input:
Paragraph- Sent 1: (CNN) -- German art collector Cornelius Gurlitt, whose nearly priceless collection was confiscated because it was suspected to contain pieces looted by the Nazis, died Tuesday and left the masterpieces to a Swiss museum.
Sent 2: One day after Gurlitt's death at the age of 81, the Museum of Fine Arts Bern announced that Gurlitt had named it "his unrestricted and unfettered sole heir."Sent 3: The news came as a surprise, the museum said Wednesday, because Gurlitt had never had any connection to it.
Sent 4: The museum's directors are delighted at the news, they said in a statement, but also recognize that there are outstanding legal and ethical questions surrounding the collection.
Sent 5: Gurlitt had undergone major heart surgery and was hospitalized for many weeks, his representative said in a statement.
Sent 6: Gurlitt grabbed the attention of the art world when German prosecutors seized more than 1,200 paintings from his Munich apartment in 2012, including works by Picasso and Matisse.
Sent 7: The collection was confiscated as part of an investigation into tax fraud, but then it was thought that some of the paintings may have been works that were looted by the Nazis.
Sent 8: Just last month, part of the collection was returned to Gurlitt as part of a deal with Germany's cultural authorities and the Bavarian Justice Ministry.
Sent 9: Under the agreement, works owned by Gurlitt that were not under suspicion were returned to him.
Sent 10: Those suspected of being stolen were to be held securely while a task force investigates their provenance -- and will be returned to their original Jewish owners or their descendants if a claim is proven.
Sent 11: Gurlitt's representative said that with the art collector's death, the investigation into the collection ceases.
Sent 12: The court that was handling the investigation proceedings will now function as an estate court in the case.
Question: Why did German prosecutors initially seize over 1,200 paintings from Gurlitt's apartment? (A) As part of an investigation into tax fraud (B) Because he stole them from the museum (C) Because he donated them to a Swiss museum (D) The collection was confiscated as part of an investigation into tax fraud (E) Because it was suspected to contain pieces looted by the Nazis.

Ex Output:
A, D, E.

Ex Input:
Paragraph- Sent 1: When single father Thurman Williams needed help filling out papers in a custody suit recently, he didn't look to his lawyer for help.
Sent 2: He walked to a computerized kiosk at the Lamoreaux Justice Center in Orange and started tapping the keys.
Sent 3: As part of a legal experiment, litigants without lawyers across California are using computerized video kiosks to prepare common court filings and seek basic legal advice.
Sent 4: The kiosk used by Williams is part of a statewide effort to cope with a flood of litigants who cannot afford or refuse to hire lawyers.
Sent 5: Court officials statewide fear the number of self-represented litigants has reached crisis levels and threatens to clog court calendars.
Sent 6: Like Williams, more than 6,000 Orange County litigants have initiated court actions on I-CAN!
Sent 7: kiosks or accessed the programs on the Internet, using home computers.
Sent 8: Similar programs are operating in Sacramento, San Diego and Ventura.
Sent 9: A recent study of the kiosks' first 18 months of operation concluded it is too soon to tell if the system will relieve pressure on court calendars.
Sent 10: But the report, by UC Irvine's School of Social Ecology, said users were overwhelmingly positive about the free legal assistance.
Sent 11: "It's made life a lot easier for me," Williams said.
Sent 12: "It's helped keep me from going to the poorhouse."Sent 13: The 29-year-old Orange resident was directed to a kiosk in the Lamoreaux Justice Center by court staff.
Sent 14: After putting on headphones and following the directions of a videotaped instructor, Williams filled out a quarter-inch stack of paternity and custody documents.
Sent 15: The exercise took 20 minutes; it would have cost him about $800 if he had relied on a lawyer, he said.
Sent 16: "It was a lot easier than I thought."Sent 17: Whether they can't afford a lawyer or just want to save money, more Californians are going to court without a lawyer.
Sent 18: "I'm just amazed at the numbers," said Commissioner Salvador Sarmiento, who hears between 40 and 90 child-support cases a day in Lamoreaux Justice Center.
Question: Who walked to a computerized kiosk at the Lamoreaux Justice Center in Orange? (A) Sarmiento (B) A man (C) Salvador Sarmiento (D) Thurman Williams.

Ex Output:
D.