Final answer:
The answer is option c. An inspirational appeal is more likely to be effective when the influence agent involves the workers in the change process.
Step-by-step explanation:
The answer to the question is option c. An inspirational appeal is more likely to be effective when the influence agent involves the workers in the change process. This is because when workers are involved in the process, they feel a sense of ownership and empowerment, which increases their motivation and commitment to achieve the desired goals.