The article states:
No doubt, Stewart had a taste for extreme biking. He hit turns hard and flew high off dunes. So crashes and injuries were unavoidable. To date, he's broken his arm, thumb, ankle, collarbone, and wrist bone. He has also suffered continuing difficulties from a damaged knee. But through it all, Stewart bounced back again and again.
Why did the author include this passage?
A.To show that Stewart was willing to take risks and did not give up easily
B.To explain why knee injuries do not heal quickly
C.To criticize Stewart's dangerous riding style
D.To argue that more safety rules are needed in professional dirt bike racing