Final answer:
The internet changed mass media by A)allowing users to be much more active.
Step-by-step explanation:
The internet has changed mass media by allowing users to be much more active. In the past, traditional mass media like newspapers, television, and radio acted as gatekeepers of information, choosing what to present to the public. However, with the rise of the internet and social media, individuals now have the power to create and consume their own digital content. This participatory nature of the internet has transformed users from passive absorbers of content to active creators and consumers.