Research for a client who owns used car dealerships shows that people who visit his website also visit certain popular car blogs. Which targeting method would you use to reach these people?
Placements are locations on Display Network where your ad can appear. Examples include relevant websites and apps that partner with Google to show ads. You can choose specific locations by adding managed placements.
Topic targeting allows your ads can to appear automatically on any sites with related content on the Google Display Network.
Read more here: https://support.google.com/partners/answer/2769377?hl=en
If you want to run ads on the Display Network but only on placements you’ve hand-picked, you can do so with managed placements. For example, if you sell travel packages and want your ads to appear on a particular website or a specific page about travel, add it as a managed placement.
Read more here https://support.google.com/adwords/answer/2470108?hl=en