ANSWER:
The consumers express self-interest by Seeking the lowest price for a product.
EXPLANATION:
Most consumers opt for a product which is low in its price before checking out the product’s quality and efficiency. They get satisfied with a purchase mainly based on the amount spent on buying it.
Even in terms of hotels and other restaurants, they prefer the ones with the lowest price. Thus, Products with discounts and the lowest price are the main criteria for consumer’s satisfaction.