Answer:
The correct answer is Acxiom, Experian, Media Audit.
Explanation:
Demographics are general information about groups of people. Depending on the purpose, the data may include attributes such as age, sex and place of residence, as well as social characteristics such as occupation, family situation or income. In web analytics and online marketing, demographics are used to provide a deeper insight into a website's target audience or to create the so-called people. Demographic data is used primarily for the strategic use of tailoring offerings to the respective target group and can also be used as the basis for business analysis and performance reporting.
