Final answer:
Bob's move from an operational role in the human resources department to a strategic role can be described as a promotion.
Step-by-step explanation:
Bob's move from an operational role in the human resources department to a strategic role can be described as A. Promotion. Promotion refers to the advancement or elevation of an employee to a higher position or role within an organization. In this case, Bob is moving to a more strategic role, indicating a higher level of responsibility and influence. Bob's transition from handling day-to-day operations to focusing on broader strategic goals can lead to organizational improvements and align the company's workforce with its long-term objectives. This mirrors the trend in the workforce where individuals often move into other management positions to further their careers and contribute to the company's growth.