Detailed Instructions: 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.
Problem:Paragraph- Sent 1: Joe's parents are farmers and they have a huge farm with cows, chickens, and ducks.
Sent 2: Joe loves the farm and all the things he gets to play around and play on.
Sent 3: One day, Joe's father told him not to get near a tractor that was sitting in the field.
Sent 4: His father was worried that Joe would climb on it and hurt himself.
Sent 5: Joe went out to the field and was feeding the horses and cows.
Sent 6: When he was done, he saw the tractor his father told him not to get near.
Sent 7: He knew that climbing on the tractor wouldn't hurt anything, so he did.
Sent 8: He climbed on to the seat and sat there.
Sent 9: Then, he pretended he was his father and pretended that he was driving the tractor.
Sent 10: Joe's father saw him playing on the tractor and called for him.
Sent 11: Joe heard his father calling for him and got off the tractor really fast.
Sent 12: When he did that, he fell off and hurt his arm.
Sent 13: Joe was in pain and his father came running to check on him and picked him up and sat him on a bench and asked him why he did that.
Sent 14: Joe looked at his father and said, "I wanted to be like you."Sent 15: Joe's father gave him a hug and asked him if he wanted to ride with him on the tractor.
Sent 16: Joe did and after he got a bandage on his arm, he and his father rode in the field on the tractor. 
Question: Where was the seat Joe fell off (A) In the kitchen (B) In the house (C) Next to his father (D) On the tractor.
Solution:
D.