Sheila is one of the managers at Benson & Parker Advertising, an agency based in New York. She is a member of a coalition of managers who are deciding whether to shift their headquarters to Texas. Even though Sheila is against the move, she decides to suppress her opinion because most of the managers of the company favor the move.
In this scenario, Sheila is engaging in ____.

a. commitment escalation
b. bargaining
c. problemistic search
d. groupthink