Final answer:
Khosrowshahi likely uses the consultation influence tactic at Uber, as it involves listening to and taking action on employee feedback, thereby increasing their commitment and support. Option number a is correct.
Step-by-step explanation:
One influence tactic that Khosrowshahi is able to rely on for getting buy-in from Uber employees is consultation, which is centered around his effort to listen to and make changes based on employee feedback. Consultation is a participative form of influence where a leader seeks input from employees, making them feel involved in the decision-making process.
This can increase commitment to the resulting decisions and policies. While other tactics like coalition tactics, exchange, ingratiation, and inspirational appeals can also be used to persuade, consultation is uniquely built on the participation and feedback of the employees themselves, creating a sense of ownership and alignment with the company's direction.