In Relation to the Issue of Athletes' Responses to Injuries

In relation to the issue of athletes' responses to injuries in sport, the example of Sydney Crosby can be considered relevant because:

A) He pushed back against the 'no pain, no gain' ethos of the NHL and decided to protect his health above performance after sustaining concussions
B) As the league's best player, he orchestrated a walkout against the NHL in protest of their treatment of the issue of brain injuries in hockey players
C) He sustained several concussions while playing hockey, but decided to play on through them regardless of the consequences to his personal health, thereby serving as an ideal model of the 'no pain, no gain' ethos
D) He has led a movement to ban fighting in hockey, given the new evidence emerging about its connection to brain injuries and long-term cognitive and neurological problems in players who fight