Question

Which trend during the 1920s does this image reflect?

reliance on scientific management techniques
the growth of the advertising industry
decreased mass production of goods
using protecting tariffs to control foreign imports

Answer 1

I would say B because they had just started advertising and now every single company is doing it.

Answer 2

considering the fact that this image is an advertisement for a refrigerator we can assume that it is for the growth of advertising industry because this is a newspaper article advertising a brand new metal fridge, Chilling!