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 Q]: Paragraph- Sent 1: (CNN) -- English club Chelsea have completed the signing of Oriol Romeu from Spanish and European champions Barcelona.
Sent 2: The 19-year-old is currently playing for Spain at the World Under-20 Championships in Colombia and has signed a four-year deal with last season's Premier League runners-up.
Sent 3: The deal is worth $7 million and includes a buy back clause, set at $14 million after the first year and $21 million after the second.
Sent 4: Romeu started his career at Barcelona's city rivals Espanyol before joining the Camp Nou academy in 2004.
Sent 5: The midfielder, who can also play in central defence, made his debut for Barcelona in last season's Spanish Supercup match with Seville and got his first taste of league action against Deportivo in May 2010.
Sent 6: He has played 90 minutes in both of Spain's games at the World Under-20 Championships, when they beat Costa Rica and Ecuador.
Sent 7: Chelsea official web site confirmed the signing and said Romeu is "renowned for his strength and his expansive passing ability."Sent 8: Another player leaving Barcelona is Jeffren Suarez after he agreed to join Sporting Lisbon.
Sent 9: The Portuguese outfit have paid $5 million for the 23-year-old which, like the Romeu deal, includes a buy back option.
Sent 10: Jeffren joined Barca from Tenerife in 2004 and made his debut for the Catalan club in the 2006-07 season.
Question: What position did Romeu play when he started his career at Barcelona's city rivals Espanyol? (A) Goalie (B) Midfielder (C) Forward (D) Central defence (E) Mid fielder (F) Wing.
[EX A]: B, E.

[EX Q]: Paragraph- Sent 1: Once upon a time, there was a squirrel named Joey.
Sent 2: Joey loved to go outside and play with his cousin Jimmy.
Sent 3: Joey and Jimmy played silly games together, and were always laughing.
Sent 4: One day, Joey and Jimmy went swimming together at their Aunt Julie's pond.
Sent 5: Joey woke up early in the morning to eat some food before they left.
Sent 6: He couldn't find anything to eat except for pie!
Sent 7: Usually, Joey would eat cereal, fruit (a pear), or oatmeal for breakfast.
Sent 8: After he ate, he and Jimmy went to the pond.
Sent 9: On their way there they saw their friend Jack Rabbit.
Sent 10: They dove into the water and swam for several hours.
Sent 11: The sun was out, but the breeze was cold.
Sent 12: Joey and Jimmy got out of the water and started walking home.
Sent 13: Their fur was wet, and the breeze chilled them.
Sent 14: When they got home, they dried off, and Jimmy put on his favorite purple shirt.
Sent 15: Joey put on a blue shirt with red and green dots.
Sent 16: The two squirrels ate some food that Joey's mom, Jasmine, made and went off to bed.
Question: What did the two squirrel's do when they got to Joey's house? (A) Put on shirts (B) Swam (C) Joey and Jimmy got to Joey's house, they dried off, dressed themselves and ate some food that Jasmine made.
[EX A]: A, C.

[EX Q]: Paragraph- Sent 1: Once upon a time there was a princess who lived in a high tower and she was not allowed to leave because of her mean mother.
Sent 2: One day she chose to leave but her mother would not let her.
Sent 3: The princess climbed out the window of the high tower and climbed down the south wall when her mother was sleeping.
Sent 4: She wandered out a good ways.
Sent 5: Finally she went into the forest where there are no electric poles but where there are some caves.
Sent 6: There she met a young man who was running.
Sent 7: His name was John.
Sent 8: John asked the princess why such a beautiful woman like her was out in the middle of a forest.
Sent 9: She said that she had been trapped for her whole life by an evil woman who said she was her mother.
Sent 10: The man said that he would take the princess to a castle that was near.
Sent 11: He also said that he thought that she may be the missing princess.
Sent 12: As they go through the forest they run into many problems.
Sent 13: They see that they are lost and have no way of finding where to go.
Sent 14: After several days pass, the princess climbs up to the top of a tree in order to find out where they are.
Sent 15: She sees that the castle where they want to go is not that far away and near a mountain.
Sent 16: After thinking of the best way to get there, John and the princess go to the castle where they live for the rest of their lives.
Question: How did the Princess spot the castle? (A) By using John's spyglass (B) By climbing on top of a tree (C) By climbing on John's shoulders (D) She climbed a tree.
[EX A]:
B.