Final answer:
Implement a mileage tracking system.
Step-by-step explanation:
Based on the data provided, a clear recommendation for analyzing mileage reimbursement costs using dashboards would be to b) Implement a mileage tracking system.
By implementing a mileage tracking system, the company can accurately track and calculate each employee's mileage, which will provide more precise data for reimbursement purposes. This will help the company ensure fair and accurate reimbursement amounts, reduce the potential for miscalculations and inaccuracies, and promote transparency and accountability.