What type of functional report is typically generated to assess customer service efficiency?

A descriptive report is the correct choice for assessing customer service efficiency because it summarizes historical data and provides insights into past performance metrics. This type of report focuses on what has happened, presenting data in a straightforward manner to highlight key performance indicators, such as response times, resolution rates, and customer satisfaction scores.

Descriptive reports are particularly valuable in the context of customer service as they allow organizations to examine trends over time, identify areas of strength and weakness, and make data-driven decisions to improve service efficiency. By analyzing historical data, teams can assess how effectively they are meeting customer needs and where improvements can be made.

In contrast, predictive reports would forecast future trends based on historical data, which is more focused on anticipating outcomes rather than assessing current efficiency. Comparative reports would typically involve comparing different sets of data to evaluate performance against benchmarks or competitors, which is not the primary goal when simply assessing efficiency. Diagnostic reports aim to identify the causes of certain issues or performance problems, making them useful for troubleshooting rather than for performance assessment in a general sense.