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: The cute red ball rolled over to the blue ball and said hello.
Sent 2: The blue ball was scared and went to cry to the green ball.
Sent 3: The green ball laughed at the blue ball.
Sent 4: Then the green ball told the orange ball that blue ball was stupid.
Sent 5: Most felt this was not good to do and so they punished the green ball by taking away all his air.
Sent 6: From that day on everyone saw the air-less green ball and knew that they could not do or say any bad things.
Sent 7: This is how the trouble started.
Sent 8: The purple ball used the fear of everyone to become the leader that they all feared.
Sent 9: The purple ball was mean to everyone.
Sent 10: Until one day the red ball spoke up and got all the other colored balls together and they took the air from the purple ball and put it in the green ball.
Sent 11: Sadly, the green ball had been without air for too long and was dead.
Question: Why did they take the air from the purple ball? (A) Because the green ball asked them to (B) He was being mean to everyone (C) Because the purple ball was mean (D) Because the blue ball needed air.
answer:
B, C.

question:
Paragraph- Sent 1: Speed is an important aspect of motion.
Sent 2: It is a measure of how fast or slow something moves.
Sent 3: To determine speed you must know two things.
Sent 4: First, you must know how far something travels.
Sent 5: Second, you need to know how long it takes to travel that far.
Sent 6: Speed can be calculated using this formula: speed = distance time A familiar example is the speed of a car.
Sent 7: In the U.S., this is usually expressed in miles per hour.
Sent 8: Think about a trip you and your family made in the car.
Sent 9: Maybe the trip covered 120 miles and it took 3 hours.
Sent 10: What was the cars speed?
Sent 11: speed = 120 mi = 40 mi/h 3h The speed of a car may also be expressed in kilometers per hour (km/h).
Sent 12: The SI unit for speed is meters per second (m/s).
Sent 13: This is the unit of measure a scientist would use.
Question: What is speed? (A) How long it takes to travel that far (B) Speed is an important aspect of motion (C) The measure of gravity against time (D) It is a measure of how far something is (E) Gravitational pull (F) When something moves (G) A force of gravity (H) How far something travels (I) An aspect of motion, it is the measure of how slow or fast something travels (J) How quick something moves in space (K) It is a measure of how fast or slow something moves (L) A measure of how fast or slow something moves (M) The measure of motion (N) An aspect of motion; a measure of how fast or slow an object moves.
answer:
B, I, K, L, N.

question:
Paragraph- Sent 1: In actual practice, however, we act too often as if we only cared for economic values.
Sent 2: If we are to live up to our educational profession, we must look our aim in the face and honestly practise what we believe.
Sent 3: While training of character and conduct is the accepted aim for education in general, to make this useful and practical each teacher must fix her attention on how this ultimate aim affects her own special part of the whole work.
Sent 4: By watching the free child she will discover how best she can help him: he knows his own business, and when unfettered by advice or command shows plainly that he is chiefly concerned with _gaining experience_.
Sent 5: He finds himself in what is to him a new and complex world of people and things; actual experience is the foundation for a complete living, and the stronger the foundation the better the result of later building.
Sent 6: _The first vital principle then is that the teacher of young children must provide life in miniature; that is, she must provide abundant raw material and opportunities for experience_.
Question: How do the aims of education and the actual practice differ? (A) Education is about economic values, but practice focus on character (B) Education is about training character and conduct, but practice cares too often only for economic values (C) Education focus on people, but practice focus on things.
answer:
B.