I think the answer is b there you go
I’m sorry but what do you need help with?
In the 1920s, assembly line production made it incredibly easy for Americans to access new consumer goods. Rising earnings gave more disposable income to be able to purchase the goods, as well as affordable automobiles and devices that people would need and want. Many people started living the desired life they wanted with affordable products. Advertising became as big as the industry they were representing because people paid more attention to the products they could generally afford. It was a head start during the industrial expansion.
Narrative history is writing history as a story that focuses on the chronological order of history.
There are several reasons why It is useful for historians to craft historical narrative.
1. The event in time can be better understood.
2. The key roles and relevant features can be easily point out.
3. The actions can be easily described.And why those rather than other actions were taken.
4. What causal processes(social or natural) may have played a role in bringing the world to the outcome of interest?