The given scenario is an example of marketing behavior that would occur during the sales era of U.S. business history.
This refers to the creation of awareness for a particular product by making promotions.
Hence, we can see that based on the given scenario of the machine lubricant that was sold after the WWII, there was the introduction of strong competitors and a sales force had to be hired and this is an example of marketing behavior that would occur during the sales era of U.S. business history.
Read more about marketing here:
https://brainly.com/question/25754149
#SPJ12