Answer: Demographics
Explanation:
The demographics is one of the type of marketing segmentation that is divided on the bases of ethnicity, education, religion and the income.
The main objective of the demographics segmentation is that it helps in segmenting into the form of various types of markets and also attract the customers for the products.
According to the given question, Lisle hair is one of the company that helps in tracking the actual age and the gender of the consumers so that they can target the customer easily thought e-mails for their hair products.
Therefore, The above given is the example of demographics in the marketing.