Tina is a high-performing Director in an IT firm and is really hoping to be promoted to a V.P. level. She often engages in informal, unofficial, and sometimes behind-the-scenes efforts to sell her ideas, influence an organization, increase power, and achieve her objectives. Tina is engaging in: 
A. Self-promotion tactics 
B. Organizational 
C. Politics 
D. Self-serving bias 
E. Inter-personal bias