Sandra sets up a meeting with her boss, Celeste. Sandra is a project manager who is having trouble controlling her team, and Celeste was a noted project manager before being promoted. Sandra opens the meeting with, "I'm sorry to bother you because I know you're extremely busy, but you're an expert at this and I need your help." Sandra is using which persuasion tactic? a. Consultation b. Exchange c. Ingratiating d. Legitimating e. Pressure f. Machiavellianism