Final answer:
Marketing uses the creation of exchanges to build relationships with customers and stakeholders. Exchanges can include both products and services, and they benefit both customers and marketers.
Step-by-step explanation:
In marketing, the creation of exchanges is a key strategy used to build relationships with customers and stakeholders. It involves offering products or services in exchange for something of value, such as money or information. Exchanges in marketing can include both products and services, making statement B true. Effective exchanges benefit both customers and marketers as they fulfill customers' needs or wants while generating revenue and fostering customer loyalty, making statement D true.