is a practice where a store sends coupons to a customer, who has already bought a product from the store, for a more expensive brand of the same product, in the hope that the customer would prefer the expensive brand.

Upselling                

Explanation:

Upselling: The term "upselling" is described as a specific sales technique in which a seller generally induces different customers to buy or purchase items that are considered as more expensive, upgrades or any other "add-ons" while making an effort to create a profitable sale.

In other words, it is referred to as a practice or an effort to encourage various customers to buy high-end products. This is a method of persuading customers.

As per the question, the given statement signifies "upselling".

the correct option is c