(A) Create a placement with all ad units on pages containing content about sports.
(B) Create an ad unit that serves run of site, and name it “sports.”
(C) Use a different account for sports pages.
(D) Increase your refresh rate on your top sports page.
If an advertiser wants to target all of your sports pages, you can achieve that by creating a placement with all ad units on pages containing content about sports.
This question is a part of the Check your Knowledge section of the “Create placements” lesson from the “Build Inventory and Ad Units” unit which is part of the Drive Advertising Revenue with Google Ad Manager course.