Respuesta :
The most likely audience of the document is, Relatively untrained bicyclists.
What is untrained?
Untrained means incapable in a particular skills.
Because the documents goal is about who one should do bike one hundred miles in one day. And one can achieve this with the right bike, the right training, and the right attitude, even a beginner can bike, which shoe the targeted audience is the untrained bicyclists.
Hence the correct option is, B. Relatively untrained bicyclists.
To know more about untrained:
https://brainly.com/question/9065925
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