Which orientation in the evolution of the marketing concept was characterized by the supply of manufactured goods catching up with and then exceeding demand, leading businesspeople to realize they would have to promote their products to get buyers to desire them?

The orientation in the evoluion of the marketing concept that was characterized by the supply of manufactured goods catching up with and then exceeding demand, leading businesspeople to realize they would have to promote their products to get buyers to desire them. Is:

Sales

Explanation:

Maybe for us in modernity sales is a very basic concept that is almost as basic as air, or eats. But in the past, it first had to be invented, then applied, and finally modified. The reason for this is that the exchange of a good for a general object to represent inherent wealth was not natural. The first civilizations didn't even exchange their goods inside their societies. They just distributed them and when multiply settlements started alliances they exchanged them until they believed they had to find a neutral value to balance trade.

answer; is the sum of all individual demands curves;