Final Answer:
The answer of the given statement that " required to track mobile app conversions using Floodlight tags" is 4) A user resettable device identifier passed to both Floodlight tags and the ad tags running in apps.
Step-by-step explanation:
To track mobile app conversions using Floodlight tags, it's crucial to use a user resettable device identifier. This identifier allows for accurate tracking of conversions across different devices and helps in attributing the conversions to specific users.
Passing this identifier to both Floodlight tags and ad tags running in apps ensures a seamless and reliable tracking process.
A dynamic publisher pixel, an HTML5 Macro, or a Floodlight tag with activities set to collect in-app variables are not the primary requirements for tracking mobile app conversions using Floodlight tags.
While they may play specific roles in other aspects of tracking or data collection, the user resettable device identifier is the key component for accurate conversion tracking in the context of mobile apps.
In summary, the correct requirement for tracking mobile app conversions using Floodlight tags is option 4: A user resettable device identifier passed to both Floodlight tags and the ad tags running in apps.