Solution
Option 1 -> Marketing Research focuses on analyzing market trends and consumer behavior, which is not related to staffing functions.
Option 2 -> Accounting and Finance deals with financial management and reporting, which is a separate organizational function from staffing.
Option 3 -> Training and Development is a core component of staffing that focuses on acquiring, developing, and retaining human resources to meet organizational needs.
Option 4 -> Production Management concerns manufacturing processes and operations, not the management of human resources.
Hence, Option 3: Training and Development -> Staffing is a management function primarily focused on human resource management, which includes recruitment, selection, training, development, compensation, and retention of employees. Training and Development is a key element that ensures employees acquire necessary skills and competencies to perform effectively -> correct