What does the awareness index within Brand Metrics measure?

The predictive size of the audience aware of your brand relative to your most comparable peers.
The volume of shoppers who have searched for your brand or products, but did not engage further with your brand in the selected category.
The number of products appearing on the Amazon.com discovery page after shoppers search with a query.

The correct answer is:

The predictive size of the audience aware of your brand relative to your most comparable peers.