Final answer:
An offer is everything a business provides to satisfy customer needs, such as guarantees and warranties. These reassurances promote sales by promising quality and encouraging purchases.
Step-by-step explanation:
An offer is everything a business offers to satisfy a customer's needs. In the goods market, sellers provide explicit reassurance through guarantees, warranties, and service contracts. For example, a money-back guarantee functions as a promise of quality, encouraging people to buy something even if they are uncertain whether they want to keep it.