Final answer:
The category sets the data source, not the other way around.
Step-by-step explanation:
The subject of this question is Computers and Technology. The statement implies that the category determines the data source, meaning that the category selection determines where the data comes from.
For example, in a database management system, the category sets the table or collection from which the data is retrieved. A specific category selection will determine the source of the data that will be used for analysis or processing.
This concept is important in various fields, such as in web development where choosing the correct data source can significantly affect the functionality and output of the website.