A publisher has a text-only leaderboard on top of a page, and a text-only small square ad slot within the content of that page. The small square ad slot has a higher a CTR, but the leaderboard has high CPCs. Is there anything the publisher can do to try and increase their earnings? Select all that apply.
- Yes, the publisher should opt in Image ads to both of ad units.
- Yes, the publisher should change small square ad unit into large rectangle ad unit.
- Yes, the publisher should make sure the medium rectangle ad unit comes first in their HTML code.