Final answer:
QuickBooks uses Jobs and Classes to track specific customer activities separately. Jobs are used for individual projects or services for a single customer, while Classes categorize income and expenses across business segments.
Step-by-step explanation:
The two items that can allow QuickBooks to track a specific customer activity separate from the regular customer activity are Jobs and Classes. Jobs in QuickBooks are sub-entries of customers that allow you to keep separate records for different projects or services for the same customer. This can be particularly useful for service-based businesses or contractors who manage multiple projects for a single client. On the other hand, Classes provide a way to track the financial data independent of the customer list. This allows business owners to categorize income and expenses across different segments of their business, such as departments, locations, or types of sales, which offers a detailed insight into the financial performance of each segment.