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.
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Question: Paragraph- Sent 1: You may be wondering, how can a glacier get so big?
Sent 2: Why does it move?
Sent 3: These are both good questions.
Sent 4: In the winter months, precipitation falls as snow.
Sent 5: This solid form of water builds up on the ground as long as the temperatures stay cold enough.
Sent 6: As the temperature rises, the snow starts to melt.
Sent 7: The frozen water changes state back into a liquid state.
Sent 8: Nearer the poles, summer does not last very long.
Sent 9: If the summer is long enough and warm enough, all the snow may melt.
Sent 10: This is what typically happens now.
Sent 11: The earth was a little cooler 12,000 years ago.
Sent 12: As a result, during the summer months, that amount of snow did not melt.
Sent 13: It may have only been an inch or so of snow that melted.
Sent 14: The following winter, snow fell on top of this left-over snow.
Sent 15: This next winters snowfall had a head start.
Sent 16: Year after year, the snow that did not melt became thicker and thicker.
Sent 17: Inch by inch the snow started to build up.
Sent 18: Over many years, layer upon layer of snow compacted and turned to ice.
Question: How does the snow turn into ice? (A) By get accumulated and compacted (B) Layer upon layer of snow compacted and turned to ice (C) Year after year, the snow that did not melt became thicker and thicker, building up, compacting, and turning into ice (D) By freezing during summer (E) As the temperature rose, the snow started to melt.

Answer: A, B, C.

Question: Paragraph- Sent 1: Einstein and Maric married in January 1903.
Sent 2: In May 1904, the couple's first son, Hans Albert Einstein, was born in Bern, Switzerland.
Sent 3: Their second son, Eduard, was born in Zurich in July 1910.
Sent 4: In 1914, the couple separated; Einstein moved to Berlin and his wife remained in Zurich with their sons.
Sent 5: They divorced on 14 February 1919, having lived apart for five years.
Sent 6: Eduard, whom his father called "Tete" (for petit), had a breakdown at about age 20 and was diagnosed with schizophrenia.
Sent 7: His mother cared for him and he was also committed to asylums for several periods, including full-time after her death.
Sent 8: The marriage with Maric does not seem to have been very happy.
Sent 9: In letters revealed in 2015, Einstein wrote to his early love, Marie Winteler, about his marriage and his still strong feelings for Marie.
Sent 10: In 1910 he wrote to her that "I think of you in heartfelt love every spare minute and am so unhappy as only a man can be" while his wife was pregnant with their second child.
Sent 11: Einstein spoke about a "misguided love" and a "missed life" regarding his love for Marie.
Sent 12: Einstein married Elsa Lowenthal on 2 June 1919, after having had a relationship with her since 1912.
Sent 13: She was a first cousin maternally and a second cousin paternally.
Sent 14: In 1933, they emigrated to the United States.
Sent 15: In 1935, Elsa Einstein was diagnosed with heart and kidney problems; she died in December 1936.
Question: When were the children of Einstein and Maric born? (A) 1903 (B) 1910 (C) 1912 (D) 1904 (E) 1914.

Answer: B, D.

Question: Paragraph- Sent 1: Amateur tennis star Guy Haines wants to divorce his vulgar and unfaithful wife Miriam , so he can marry the elegant and beautiful Anne Morton , daughter of a senator .
Sent 2: While on a train to meet Miriam , Haines meets Bruno Anthony , a forward stranger who recognizes Guy from gossip items in the newspapers that detail his marital problems .
Sent 3: During lunch in Bruno's compartment , Bruno tells Guy about his idea for the perfect '' Criss-cross '' murder : he will kill Miriam and in exchange , Guy will kill Bruno's father .
Sent 4: Since both are strangers , otherwise unconnected , there is no identifiable motive for the crimes , Bruno contends , hence no suspicion .
Sent 5: Guy hurriedly leaves the compartment but leaves Bruno thinking he has agreed to the deal .
Sent 6: Guy accidentally leaves his cigarette lighter behind , a gift from Anne to Guy , Which Bruno pockets .
Sent 7: Bruno heads to Guy's hometown of Metcalf and follows Miriam and her two beaux to an amusement park , where he briefly illuminates her face with Guy's lighter , then strangles her to death .
Sent 8: Guy's problems begin when his alibi an inebriated college professor on the same train as Guy can not remember their meeting .
Sent 9: But they increase exponentially when Bruno makes repeated appearances into Guy's life as he seeks to remind Guy that he is now obliged to kill Bruno's father , according to the bargain he thinks they struck on the train .
Sent 10: Bruno sends Guy the keys to his house , a map to his father's room , and a pistol .
Sent 11: Soon after , Bruno appears at a party at Senator Morton's house and hobnobs with the guests , much to Guy's apprehension and Anne's increasing suspicion .
Question: Where did Bruno lose his cigarette lighter? (A) On the plane (B) On the train (C) At his house (D) Behind , a gift from Anne to Guy (E) He didn't (F) While talking with the drunk professor.

Answer:
B, D, E.