In general, the most common theme that ran through these eras was a sense of excitement about the future, especially in the world or arts. People were becoming autonomous.
When the author uses an objective tone, is helps the readers to analyze the information logically, without bias interfering.
Smoking, topic. Our actions, theme. Dropout, topic. People, theme. Education, theme. Global, topic. Hope that helps!
The answer is B, hope this helps :)
