Answer:
Production Oriented or Mass Production Era.
Explanation:
This marketing era took place around the mid 1800s and lasted until the early 1920s. It was basically a result of the industrial revolution where mass production started and manufacturing costs started to decrease. Most businesses would produce only one or very few types of products, and most business people thought that if they were to manufacture something, someone would buy it. Since this type of mass production was something totally new, people had lots of products available and relatively cheap for the first time, and indeed most of the production was sold that way.