How does conrad use light and dark imagery

In his speech steve jobs presents several elements of pathos.write down five examples that involves jobs use of pathos and explain why he shares these elements with the audience

What is the difference between a major and a minor character? a major character has a less important story line, while a minor character plays a bigger role in the plot. a major character plays a big role in the plot, while a minor character has a less important story line. a major character has an unimportant story line in the plot. a minor character's story line is as important and developed as the major characters' story lines.

Wich statements best identifies a problem with this method