I believe the answer is B. Hope this helped!
-Twixx
The answer is (B) The most crucial safety tip a rider must always follow is wearing a properly fitted helmet.
(A) Informs you on the price of horses
(C) Gives you a definition of what horse reins are.
(D) Describes what a horse looks like.
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Can't answer 'cause you didn't provide an image of the passage.
D location weather housing transportation