Final answer:
Carousels were first created to provide people with a thrilling ride, not for training soldiers or as a game for horses.
Step-by-step explanation:
The phrase that best explains why people first created carousels is to provide people with a thrilling ride. Carousels were originally designed as amusement rides to entertain and thrill people. They were not created as training devices for soldiers, to display carved animals, or as a game for horses.
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