Pretty sure its to create an image or can be A influence the reader.
Modernism is a philosophical movement that along with cultural trends and changes, arose from wide-scale and far-reaching transformations in Western society in the late 19th and early 20th centuries.
I'm not sure if there is supposed to be an additional picture ,but asking rhetorical questions is a clever way to make the reader think about what they are writing.
C.
First of all, in this statement the speaker introduces herself and immediately lets the audience know why this topic is so important to her. Audiences are more likely to be invested in a speech if they know the speaker is personally invested in the cause. It also begins with an example of pathos--an emotional appeal to the audience--which is effective in drawing an audience in.
You want to avoid throwing a lot of numbers or other researchers' names at the audience immediately upon starting (even though you will definitely want to use those things within the speech) because they will make the tone seem too formal or fact-based before the audience has a chance to become invested.