During the Final, Winner-Take-All Game 7 of the Hockey Playoff

Multiple Choice

During the final, winner-take-all Game 7 of the hockey playoff series between the Ottawa Senators and the Pittsburgh Penguins, a Pittsburgh player violently slashes Ottawa's team captain. In retaliation, one of the Ottawa players skates full-speed right into the Pittsburgh goalie, knocking him over and leaving him with a concussion. After this, fights break out between most members of both teams.
-Players who were not involved in the original acts of aggression,but who end up fighting afterwards,are likely fighting due to ___________.

A) equity
B) intention
C) responsibility
D) expectations