What is the purpose of V-PAID in digital advertising?

The purpose of V-PAID in digital advertising is to enable interactivity within video ads. V-PAID, or Video Player-Ad Interface Definition, is a standard that allows video ads to implement interactive features, such as clickable elements, overlays, or interactive content that engages the viewer. By using V-PAID, advertisers can create more immersive experiences, allowing users to interact with the ads instead of just passively viewing them. This interactivity can drive higher engagement rates, leading to better performance metrics for video campaigns.

The other options do not encompass the broad capabilities and intent of V-PAID. While serving banner ads and tracking clicks can be part of the digital advertising ecosystem, they are not the focus of the V-PAID standard. Similarly, reducing video load times is an important technical aspect of online video delivery, but it is not the primary function of V-PAID. Thus, the foundation of V-PAID lies in its ability to enhance video ad interactivity, making the second option the correct choice.