Promotion could have multiple meanings.
For example, if you say "Mr. Knight got promoted (or got a promotion) from supervisor to manager". There promotion means "raise".
If a product is at promotion there promotion means advertising efforts.
It could also refer to a way to support a cause. For example: There's a campaing supporting healthy lifestyle promotion.
A. voice
i feel like voicing the other view will show how it could be layed out
One way in which the people of the Tibetan kingdom and the people of the Inca Empire are similar is that they "<span>(1) developed coastal ports" among other things. </span>