is dividing a market into distinct groups that (1) have common needs, and (2) will respond similarly to a marketing action.

The correct word for the blank space is: Market Segmentation.

Explanation:

Market Segmentation refers to the efforts companies make to classify their consumers by age, gender, and income so the firm can specialize in a single sector of the market. By doing this, businesses can provide their target customers a tailored product that better matches their needs.

a progressive tax is a tax that imposes a lower tax rate on low-income earners compared to those with a higher income, making it based on the taxpayer's ability to pay. that means it takes a bigger percentage from high income earners than it does from low income people.

answer; ///i believe the correct answer is(e) complementary to each other;