Final answer:
The person addressed by Pulitzer is most likely Pulitzer himself.
Step-by-step explanation:
The subject of the question is Pulitzer, who is asking about who defied his ban on printing strike material.
Pulitzer is addressing the person or group of people who went against his ban. Based on the given options, the most likely answer would be Pulitzer himself, as he is demanding to know who defied his ban.
Therefore, the correct answer is C) Pulitzer.