What is the primary purpose of using charts and diagrams instead of other tools to brainstorm for a research paper topic?

to ensure that the ideas follow a logical order.
to organize ideas based on relevance.
to visualize relationships among ideas.
to allow ideas to flow freely.
to explore a topic from different angles.

C .to visualize relationships among ideas

Explanation:

The use of a visual aid will help you understand better how related are the objects of the research. You don't really need a diagram to make something follow a logical order, nor to organize things based on relevance. It is also not needed to put the subject under a new light. The diagram and charts actually help you with comparisons more than anything.

A protagonist is like the hero of the story/movie/book and the antagonist is like the bad guy or villain. They want you to explain what the hero's goal is and their motivation. So what was what the hero wanted also, explain how you know they wanted that.

Explanation:

Talk about the hero/main character of the story then get into details about what they wanted and what troubles they went through to get that. Also, give details and evidence from the story to support what you think the protagonist wanted.