What does OSA stand for?

The correct choice is the term "Operational Service Audit." This term specifically refers to a systematic examination of the operational practices and procedures within a service context, such as a restaurant. An Operational Service Audit typically assesses various aspects of service delivery, including efficiency, effectiveness, and compliance with established standards, ultimately aiming to improve overall operational performance.

This understanding is crucial for a shift lead at Panda Express as it encompasses evaluating how well the restaurant is serving its customers, identifying areas for improvement, and ensuring that the operational processes align with the company's quality and service standards. By focusing on the effectiveness of service operations, the shift lead can implement changes that enhance the customer experience and operational efficiency.

Recognizing the other options, while they may seem plausible, they do not accurately encapsulate the standardized terminology widely used in the context of auditing operational practices in service environments. This precision in terminology is important for consistency in communication and understanding across various operational frameworks.