Which of the following reports helps businesses to assess performance and identify questionable activity at the register?

The Exception Report is specifically designed to highlight unusual transactions or activities that deviate from the norm, allowing businesses to assess performance and spot questionable activity at the register. This report can include indicators such as discrepancies in sales, returns, voids, or discounts, which could suggest potential fraud or operational issues. By providing a snapshot of these exceptions, the report serves as a vital tool for loss prevention professionals in identifying and addressing anomalies that may indicate theft or errors in transaction processing.

In contrast, the other options do not focus primarily on identifying questionable activities. The Performance Review typically evaluates an employee's overall job performance without specifically addressing transactional discrepancies. The Daily Sales Summary provides an overview of sales figures and trends but lacks the detailed scrutiny of transactions that would reveal irregularities. The Employee Performance Report is meant to assess an employee's achievements and metrics but does not necessarily target specific transactional anomalies. Thus, the Exception Report is the most relevant and effective tool for monitoring and managing register-related concerns.