What are the three key reasons advertisers choose YouTube to help build their brands?

YouTube has the fastest load times on any device, built-in developer tools, and guaranteed conversion costs.
YouTube has the most engaged audience, is powered by Google data and tools, and delivers proven results.
YouTube has the lowest overall click costs, the widest range of third party tools, and standardized automation.
YouTube has the largest technical support team, the cheapest ad placements, and an enormous asset library.

The correct answer is:

YouTube has the most engaged audience, is powered by Google data and tools, and delivers proven results.