Final answer:
The INS tag offers more robust verification data and enables ad serving on browsers without JavaScript support.
Step-by-step explanation:
The INS tag, also known as the IFrame Navigations Summary tag, offers several benefits. Firstly, it provides more robust verification data, which helps website owners ensure the accuracy of their analytics. Additionally, it enables serving ads on browsers that don't support JavaScript, expanding the reach of advertising campaigns. However, the tag does not reduce latency or eliminate the need for cache-busters, as mentioned in options 3) and 4) respectively.
One advantage of the ins tag is that you do not need to add a cache buster. The tag automatically adds a cache buster. When the tag fires on your site, its HTML attributes will change into the corresponding parameters and then return the requested content.