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.

Example Input: Paragraph- Sent 1: Johnnie had a set of small volumes of English verse, extensively annotated by his own hand, which Stoddard had brought to her early in their acquaintance, leaving it with her more as a gift than as a loan.
Sent 2: She kept these little books after all the others had gone back.
Sent 3: She had read and reread them--cullings from Chaucer, from Spenser, from the Elizabethan lyrists, the border balladry, fierce, tender, oh, so human--till she knew pages of them by heart, and their vocabulary influenced her own, their imagery tinged all her leisure thoughts.
Sent 4: It seemed to her, whenever she debated returning them, that she could not bear it.
Sent 5: She would get them out and sit with one of them open in her hands, not reading, but staring at the pages with unseeing eyes, passing her fingers over it, as one strokes a beloved hand, or turning through each book only to find the pencilled words in the margins.
Sent 6: She would be giving up part of herself when she took these back.
Sent 7: Yet it had to be done, and one miserable morning she made them all into a neat package, intending to carry them to the mill and place them on Stoddard's desk thus early, when nobody would be in the office.
Sent 8: Then the children came in; Deanie was half sick; and in the distress of getting the ailing child comfortably into her own bed, Johnnie forgot the books.
Sent 9: Taking them in at noon, she met Stoddard himself.
Question: Why did Johnnie not want to return the books? (A) She was afraid (B) She could not bear to give them back as she treasured them and felt they were a part of herself (C) They were a part of her.
Example Output: B, C.

Example Input: Paragraph- Sent 1: Jack and Mackenzie wanted to do something fun during their day off from school.
Sent 2: They knew that the library had story time on Monday, Tuesday, and Wednesday.
Sent 3: Their mother told them they could go to the library every Tuesday for their story time.
Sent 4: They packed up the car and drove to the library, ready for a fun morning.
Sent 5: When they arrived to the story room, there were lots of other children their age, all sitting cross-legged and ready for the story of the day.
Sent 6: The teacher told them they would be reading "The Wild Horse".
Sent 7: She began to tell the story of Majestic, the wild horse who could not be calmed.
Sent 8: His people had tried and tried to break him, but he was wild at heart.
Sent 9: Every time they took him to the river to drink, he would run straight into the water and get soaking wet!
Sent 10: He would splash and play until he was ready to go back home, where he would sleep for hours, having worn himself out playing.
Question: When Jack and Mackenzie arrived at the library, who did they see? (A) Other children their age (B) Lots of children (C) Other kids (D) Their best friend (E) Their mother (F) Majestic.
Example Output: A, B, C.

Example Input: 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: Why did Jebediah turn down their offer to pull the train? What does Eric believe? (A) Because of his age (B) Because he is is too small for the job, that a train will not come for him (C) It was a dream (D) She is too small for the job.
Example Output:
A.