What is Ocean Rosenberg primarily concerned about when he participates?

Ocean Rosenberg's primary concern during his participation in the game revolves around the potential harm it may inflict on his friends. This perspective is crucial as it highlights Ocean's deep sense of loyalty and his protective instincts toward those close to him. Unlike the other options, which emphasize personal ambition or performance, Ocean's focus on the well-being of his friends shows his capacity for empathy and foresight. His apprehension reflects the underlying themes of the story, which often address the interplay of competition and friendship, as well as the moral implications of the decisions made in a high-stakes environment. This concern illustrates how the game affects not just the individual participants but also their relationships with one another, adding a layer of emotional weight to his motivations.