Assume that Ernst Blofeld is a criminal mastermind. He had many henchmen who carry out his criminal desires. Each of these henchmen report only to Blofeld for their instructions and assignments. Each henchman knows that others work for Blofeld, but they do not know who they are or what they do for him. Clearly Blofeld is at the head of a criminal conspiracy. Technically, what kind of conspiracy is this? A direct conspiracy A "wheel" conspiracy A linear conspiracy A "box" conspiracy