Which ICT trend involves buying and selling online?

The correct answer is online shopping because it specifically refers to the practice of purchasing and selling goods and services over the Internet. This trend has grown significantly with the advancement of technology and the widespread availability of the Internet, enabling consumers to browse, compare, and buy products from the comfort of their homes.

Online shopping encompasses various platforms, including e-commerce websites and apps, where transactions can be completed electronically, making it a convenient option for both consumers and retailers. In recent years, this trend has also evolved with features like virtual try-ons, personalized recommendations, and secure payment methods, all designed to enhance the shopping experience.

In contrast, gaming pertains to interactive entertainment rather than a buying and selling activity. Networking typically refers to connecting computers or systems, and while it may facilitate online shopping, it's not synonymous with the act of purchasing. Learning, although it can happen online, is focused on acquiring knowledge and skills, separate from the buying and selling context of online shopping. Thus, online shopping is the most accurate representation of the trend involving buying and selling online.