Which question cannot be answered by location data from company-issued phones?

The question about how many customers the employee went to lunch with cannot be answered solely by location data from company-issued phones because location data can pinpoint where the employee was at a given time, but it does not provide context about the activities that occurred there. While the data may show that the employee was at a restaurant during lunch hours, it cannot reveal who accompanied the employee or confirm whether the person was meeting with customers or simply dining alone.

In contrast, the other questions can be answered using location data. For instance, location data can show where the employee was during working hours or track their frequency of visits to client locations, and it can also indicate the employee's last known location at any given time. Thus, understanding the limitations of location data is crucial in interpreting its findings accurately.