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.

Input: Consider Input: Paragraph- Sent 1: In 1990, the U.S. Custom House in New York City was renamed after Hamilton.
Sent 2: In 1880, his son John Church Hamilton commissioned Carl Conrads to sculpt a granite statue, now located in Central Park, New York City.
Sent 3: One statue honoring Alexander Hamilton in Chicago was mired in controversy, at least concerning the surrounding architecture.
Sent 4: Kate Sturges Buckingham (1858-1937), of the Buckingham Fountain family, commissioned the monument.
Sent 5: Its impetus was that Treasury Secretary Hamilton "secured the nation's financial future and made it possible for her own family to make its fortune in grain elevators and banking.
Sent 6: Consequently, John Angel was hired to model a figurative sculpture and the Finnish architect Eliel Saarinen was to create a "colossal architectural setting" for it.
Sent 7: The proposed 80-foot tall columned shelter was poorly received.
Sent 8: By Ms. Buckingham's death in 1937, the sculpture's setting.
Sent 9: location and design were uncertain.
Sent 10: Conspiracy allegations surfaced, and the matter became mired in litigation.
Sent 11: After the courts ordered the construction to be completed by 1953, the trustees hired architect Samuel A. Marx.
Sent 12: The structure was completed, had structural problems, and was eventually demolished in 1993.
Sent 13: The statue was gilded, and is still on display.
Sent 14: A statue, by James Earle Fraser, was dedicated on May 17, 1923, on the south terrace of the Treasury Building, in Washington.
Question: From 1937 to 1953 what legal proceeding tied up the construction of the statue? (A) Divorce (B) Litigation (C) There was no one to claim the statue so they were not going to build it (D) Conspiracy allegations, which became mired in litigations.

Output: B, D.

Input: Consider Input: Paragraph- Sent 1: The explosion, while killing one of the Cossacks and seriously wounding the driver and people on the sidewalk, had only damaged the bulletproof carriage, a gift from Napoleon III of France.
Sent 2: The emperor emerged shaken but unhurt.
Sent 3: Rysakov was captured almost immediately.
Sent 4: Police Chief Dvorzhitsky heard Rysakov shout out to someone else in the gathering crowd.
Sent 5: The surrounding guards and the Cossacks urged the emperor to leave the area at once rather than being shown the site of the explosion.
Sent 6: Nevertheless, a second young member of the Narodnaya Volya, Ignacy Hryniewiecki, standing by the canal fence, raised both arms and threw something at the emperor's feet.
Sent 7: He was alleged to have shouted, "It is too early to thank God".
Sent 8: Dvorzhitsky was later to write:.
Question: How many times was the emperor attacked? (A) Twice (B) 2 (C) Once (D) Three times.

Output: A, B.

Input: Consider Input: Paragraph- Sent 1: Many plants and animal species have lived on Earth.
Sent 2: Most are no longer alive.
Sent 3: Only a tiny number of species still live on Earth.
Sent 4: If not for fossils, we would know little about species that did not survive.
Sent 5: Fossils provide evidence.
Sent 6: They give us clues to past life on Earth.
Sent 7: They tell us that life on Earth has changed over time.
Sent 8: Fossils in younger rock Fossils can also tell us about how plants and animals lived in the past.
Sent 9: Was it land or marine?
Sent 10: Was the water shallow or deep?
Sent 11: Fossils can even provide clues to ancient climates.
Sent 12: They can tell us if it was warm or cold.
Sent 13: Maybe it was cold or hot?
Sent 14: Some places that are now cold were once warm.
Sent 15: Some places that are now hot and dry were once wet and cool.
Sent 16: Fossils provide a window into the past.
Question: What tells us if ancient climates were warm or cold? (A) The fossils (B) Fossils (C) Species still alive on Earth.
Output: A, B.