Answer:
A. Assign one class to each row in a transaction.
C. Assign one class to an entire transaction.
Step-by-step explanation:
You can use class tracking in QuickBooks to categorize sales and expenses according to different locations, classes or even divisions. E.g. if you are a retailer, you can classify your sales by classes like men's, women's and children clothes. Or you can also track your sales by online sales or sales made on a brick and mortar location.
You can also assign one class to an entire transaction in order to determine if it resulted in a gain or a loss.