instruction:
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.
question:
Paragraph- Sent 1: Although Bin Laden, Atef, and KSM initially contemplated using established al Qaeda members to execute the planes operation, the late 1999 arrival in Kandahar of four aspiring jihadists from Germany suddenly presented a more attractive alternative.
Sent 2: The Hamburg group shared the anti-U.S. fervor of the other candidates for the operation, but added the enormous advantages of fluency in English and familiarity with life in the West, based on years that each member of the group had spent living in Germany.
Sent 3: Not surprisingly, Mohamed Atta, Ramzi Binalshibh, Marwan al Shehhi, and Ziad Jarrah would all become key players in the 9/11 conspiracy.
Sent 4: Mohamed Atta was born on September 1, 1968, in Kafr el Sheikh, Egypt, to a middle-class family headed by his father, an attorney.
Sent 5: After graduating from Cairo University with a degree in architectural engineering in 1990, Atta worked as an urban planner in Cairo for a couple of years.
Sent 6: In the fall of 1991, he asked a German family he had met in Cairo to help him continue his education in Germany.
Sent 7: They suggested he come to Hamburg and invited him to live with them there, at least initially.
Sent 8: After completing a course in German, Atta traveled to Germany for the first time in July 1992.
Sent 9: He resided briefly in Stuttgart and then, in the fall of 1992, moved to Hamburg to live with his host family.
Sent 10: After enrolling at the University of Hamburg, he promptly transferred into the city engineering and planning course at the Technical University of Hamburg-Harburg, where he would remain registered as a student until the fall of 1999.
Sent 11: He appears to have applied himself fairly seriously to his studies (at least in comparison to his jihadist friends) and actually received his degree shortly before traveling to Afghanistan.
Sent 12: In school, Atta came across as very intelligent and reasonably pleasant, with an excellent command of the German language.
Sent 13: When Atta arrived in Germany, he appeared religious, but not fanatically so.
Sent 14: This would change, especially as his tendency to assert leadership became increasingly pronounced.
Sent 15: According to Binalshibh, as early as 1995 Atta sought to organize a Muslim student association in Hamburg.
Sent 16: In the fall of 1997, he joined a working group at the Quds mosque in Hamburg, a group designed to bridge the gap between Muslims and Christians.
Sent 17: Atta proved a poor bridge, however, because of his abrasive and increasingly dogmatic personality.
Sent 18: But among those who shared his beliefs, Atta stood out as a decisionmaker.
Question: How many years after graduating Cairo university passed before Mohamed Atta traveled to Germany (A) Immediately (B) 1 year (C) Almost 2 years (D) 1 (E) 2 (F) Less than 3 (G) Four (H) 3.
answer:
C, E, F.

question:
Paragraph- Sent 1: Sometimes a full Moon moves through Earths shadow.
Sent 2: This is a lunar eclipse .
Sent 3: During a total lunar eclipse, the Moon travels completely in Earths umbra.
Sent 4: During a partial lunar eclipse, only a portion of the Moon enters Earths umbra.
Sent 5: When the Moon passes through Earths penumbra, it is a penumbral eclipse.
Sent 6: Since Earths shadow is large, a lunar eclipse lasts for hours.
Sent 7: Anyone with a view of the Moon can see a lunar eclipse.
Sent 8: So unlike a solar eclipse, it doesnt get dark on Earth.
Sent 9: Instead it gets dark on the Moon.
Sent 10: Partial lunar eclipses occur at least twice a year, but total lunar eclipses are less common.
Sent 11: The Moon glows with a dull red coloring during a total lunar eclipse.
Question: Is it more common for the Moon to travel completely in the Earth's umbra or only partially? (A) Partial lunar eclipses occur at least twice a year, but total lunar eclipses are less common (B) Partially (C) A total eclipse is less common than partial so it is more common for the moon to travel partially in Earth's umbra (D) Completely.
answer:
B, C.

question:
Paragraph- Sent 1: She led the way into the cheerful schoolroom, where big girls and little girls were sitting about, amusing themselves in the quiet of a long Sunday afternoon.
Sent 2: Several of the younger children ran to her as she came in, and stood holding fast to the folds of her black habit, staring up at the strangers, while she explained the kind of instruction given, the system, and the order reigning in each department.
Sent 3: Finally, she persuaded a little girl, only six years old, to take her dusky face out of the long flowing veil of the nun, and show how quickly she could read a sentence that Sister Winifred wrote on the blackboard.
Sent 4: Then others were called on, and gave examples of their accomplishments in easy arithmetic and spelling.
Sent 5: The children must have been very much bored with themselves that stormy Sunday, for they entered into the examination with a quite unnatural zest.
Sent 6: Two of the elder girls recited, and some specimens of penmanship and composition were shown.
Sent 7: The delicate complexion of the little nun flushed to a pretty wild-rose pink as these pupils of hers won the Colonel's old fashioned compliments.
Question: Who visited the classroom? (A) The Colonel (B) Strangers (C) A little nun (D) Sister Winnifred.
answer:
A, B.