When optimizing a campaign to drive conversions faster, what action should you take?

You should set up the campaign to engage with audience segments who’ve searched for your brand before.
You should track lighter actions to provide more signals to Google’s machine learning algorithms.
You should track only end actions to provide more accurate signals to our machine learning algorithms.
You should set up the campaign to only engage with audience segments that have converted before.

The correct answer is:

You should track lighter actions to provide more signals to Google’s machine learning algorithms.