customer file
sales history file
inventory file
All of the above E. None of the above
Answer is Right!
Answer is Wrong!
The correct answer is: B. sales history file
A customer file contains information about a customer, such as their name, address, and contact information. A sales history file contains information about sales that have been made, such as the product sold, the quantity sold, and the date of the sale. An inventory file contains information about the products that are available for sale, such as the quantity of each product in stock.
The amount of a certain product
sold to a certain customer in a past period can be obtained from the sales history file. The sales history file will contain information about the product sold, the quantity sold, and the date of the sale. This information can be used to determine the amount of a certain product sold to a certain customer in a past period.The customer file and the inventory file do not contain information about the amount of a certain product sold to a certain customer in a past period. Therefore, the answer cannot be A or C.