Which of the following is an example of price discrimination

Which of the following is an example of price discrimination?

Increasing the price of a product when demand for the product increases.

Charging different prices for a product in different regions of the country due to differences in transportation costs.

Bundling complementary products to attract additional sales.

Reducing the price of a product to reduce excess inventory.

Solution

Charging different prices for a product in different regions of the country due to differences in transportation costs.