B: A character wants something but can’t get it
It is important to study things like change to have supporting evidence from a variety of fields because it would lend strength and some rhetoric to the argument.
Your answer would be, B. Mechanical Weathering :)
It was a kind of social protest - people did not want to be discriminated because of their race or sex. This event was a precedence - nobody thought that something like this protest could occur at that time. Rosa Parks did something that made people think about tolerance and also made other people join her protest in different places.
