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: Eric , a young boy , is excited about his birthday after reading a book and believes that a train will come for him , despite his sister Jill's disbelief .
Sent 2: A few hours later , the train station's control tower wakes up and in the roundhouse , Tillie , a young little blue switcher engine , along with her best bird friend , Chip , wakes up four other trains : Georgia , a kind all-purpose engine , Farnsworth , a stuck-up passenger engine , Jebediah , a worn-out old engine , and Pete , a gruff , burly freight engine .
Sent 3: After the tower assigns Farnsworth and Pete their jobs , Tillie tries to help with the milk train assigned to Jebediah , but the tower insists that she is too small for the job .
Sent 4: Georgia is assigned to pull the birthday train .
Sent 5: A clown named Rollo leads the toys into the train , including Stretch , a basketball player ; Missy , a ballerina ; a Handy Pandy , a panda ; Perky , an elephant ; and Grumpella , a stuffed bird .
Sent 6: During her journey , Georgia breaks down and is taken back to the roundhouse by Doc .
Sent 7: Left behind , Rollo eventually takes Doc's advice of flagging down one of the other engines returning from their daily runs over the mountain .
Sent 8: Farnsworth and Pete turn down their offers to pull the train .
Sent 9: Meanwhile , Tillie asks the tower to rescue the stranded train , but he insists that Tillie will never do the job .
Sent 10: Jebediah turns down his offer to pull the train because of his age , and returns to the roundhouse .
Sent 11: Chip and Tillie sneak past the sleeping tower and pulls the birthday train up a mountain .
Question: What's the name of the clown who's left behind? (A) Doc (B) Chip (C) Rollo.

Answer: C.

Question: Paragraph- Sent 1: Cavour was a younger son of a noble Piedmontese family, and entered the army in 1826, serving in the engineers.
Sent 2: His liberal sentiments made him distrusted by the government of Charles Felix as a dangerous man, and he was doomed to an inactive life in an unimportant post.
Sent 3: He soon quitted the army, and embarked in business operations as manager of one of the estates of his family.
Sent 4: For twelve years he confined himself to agricultural labors, making himself acquainted with all the details of business and with the science of agriculture, introducing such improvements as the use of guano, and promoting agricultural associations; but he was not indifferent at the same time to public affairs, being one of the most zealous advocates of constitutional liberty.
Sent 5: A residence in England gave him much valuable knowledge as to the working of representative institutions.
Sent 6: He established in 1847 a political newspaper, and went into parliament as a member of the Chamber of Deputies.
Sent 7: In 1848 he used all his influence to induce the government to make war with Austria; and when Charles Albert abdicated, and Victor Emmanuel became king, Cavour's great talents were rewarded.
Sent 8: In 1850 he became minister of commerce; in 1852, prime minister.
Sent 9: After that, his history is the history of Italy itself.
Question: Cavour became the minister of commerce under whose reign? (A) Itay (B) Charles Felix (C) Charles Piedmont (D) King Victor Emmanuel (E) King Charles Albert.

Answer: D.

Question: Paragraph- Sent 1: Before crossing to Asia, Alexander wanted to safeguard his northern borders.
Sent 2: In the spring of 335 BC, he advanced to suppress several revolts.
Sent 3: Starting from Amphipolis, he traveled east into the country of the "Independent Thracians"; and at Mount Haemus, the Macedonian army attacked and defeated the Thracian forces manning the heights.
Sent 4: The Macedonians marched into the country of the Triballi, and defeated their army near the Lyginus river (a tributary of the Danube).
Sent 5: Alexander then marched for three days to the Danube, encountering the Getae tribe on the opposite shore.
Sent 6: Crossing the river at night, he surprised them and forced their army to retreat after the first cavalry skirmish.
Sent 7: News then reached Alexander that Cleitus, King of Illyria, and King Glaukias of the Taulanti were in open revolt against his authority.
Sent 8: Marching west into Illyria, Alexander defeated each in turn, forcing the two rulers to flee with their troops.
Sent 9: With these victories, he secured his northern frontier.
Sent 10: While Alexander campaigned north, the Thebans and Athenians rebelled once again.
Sent 11: Alexander immediately headed south.
Sent 12: While the other cities again hesitated, Thebes decided to fight.
Sent 13: The Theban resistance was ineffective, and Alexander razed the city and divided its territory between the other Boeotian cities.
Sent 14: The end of Thebes cowed Athens, leaving all of Greece temporarily at peace.
Sent 15: Alexander then set out on his Asian campaign, leaving Antipater as regent.
Question: Did Alexander set out to secure his northern fronts and was he able to accomplish this goal? (A) Hellfire (B) Goal accomplished (C) No (D) He failed (E) Yes and yes.

Answer:
B, E.