Which of the following describes e-commerce?

E-commerce is best described as transactions conducted over the internet, which includes a broad range of activities such as online shopping, electronic payments, and online auctions. This definition encapsulates the core of e-commerce, as it is specifically centered around the use of digital platforms to facilitate buying and selling goods and services. The internet serves as the primary medium for these transactions, enabling businesses and consumers to engage in commerce without the limitations of physical locations.

Other choices focus on alternative methods or contexts of commerce. For instance, the option about buying goods over television pertains to infomercial sales or home shopping networks, which do not leverage the internet in the same way e-commerce does. The idea of physical stores selling online suggests a hybrid model, but it doesn't fully encompass the broader concept of e-commerce, which can include businesses that exclusively operate online. Lastly, local markets selling products refer to traditional face-to-face transactions that take place in a physical location, again distinct from the internet-based transactions that define e-commerce. This makes the choice highlighting transactions over the internet the most accurate and comprehensive identifier of e-commerce in the provided options.