Final answer:
E-commerce increases convenience and accessibility, allowing consumers to purchase a wider array of goods and services, thus enhancing competition in both consumer and business markets.
Step-by-step explanation:
The correct answer to the student's question about e-commerce is d. E-commerce increases convenience and accessibility in retail. With the advent of the internet and improvements in communication technologies, globalization has affected markets, allowing consumers to purchase goods from anywhere in the world. This has increased competition for local retailers as consumers have more choices. E-commerce allows for a broader reach in both consumer goods and business supplies, where business-to-business websites connect buyers and suppliers globally.