What does value$-$based bidding do$?$

It's a Smart Bidding strategy that utilizes machine learning to deliver the highest impressions possible,

It's a Smart Bidding strategy that utilizes machine leaming to deliver the highest target impression share possible.

It's a Smart Bidding strategy that utilizes machine learning to deliver the highest possible clickthrough rate.

It's a Smart Bidding strategy that utilizes machine learning to drive the highest conversion vatue possible by bidding for conversions that drive business objectives.