(A) Opt in to text and display ads.
(B) Identify the best placements for their ad units.
(C) Put ads into iFrame to prevent ads slowing down content loading.
(D) Use bigger ad formats.
(E) Place the more ads unit up to 3 per page.
Conclusion
This question is a part of the Adsense Multiple Customer Management Exam. You can find answers to all the questions asked in this exam in our Adsense Multiple Customer Management Exam Answers page.