Nothing is sold by Google.
A lot of people here do not understand what Google does with the info.
None of it is sold.
Let me explain it in kid friendly terms:
Bob buys an Android phone and Bob has an obsession on bananas.
Trevor is banana tree farmer and wants to sell more bananas.
Google know that Bob loves bananas based on his browsing habits and search terms.
Trevor decides to create online ads with Google. His business information is submitted to Google.
Now Google knows that Bob loves bananas so Google begins showing Trevor's Banana farm ads to Bob.
Trevor has no idea who Bob is or if he even exists.
In all these interactions, when was Bobs info sold to third-parties? Never.
Is it so hard to understand?
They SAY that's how they use it. Of course, you are taking their word for it. In addition, they reserve the right to change the terms of service at any time.