Which of the following terms relates to buying and selling products over digital platforms?

E-commerce refers specifically to the buying and selling of goods and services through digital platforms, such as websites and mobile applications. It encompasses a wide array of online transactions, including business-to-consumer sales, consumer-to-consumer sales, and even business-to-business trades. This concept is fundamental in today's economy as more businesses and consumers prefer the convenience and efficiency offered by digital platforms for their transactions.

The other options represent different sales methodologies. Face-to-Face Selling involves personal interaction between the seller and the buyer, typically in a physical location. Direct Marketing focuses on outreach methods intended to elicit a direct response from the consumer, such as emails, catalogs, or telemarketing, but it does not exclusively occur online. Traditional Retail refers to the conventional brick-and-mortar stores where products are sold directly to consumers in physical locations, lacking the digital aspect that defines e-commerce.