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.

there is no excerpt.

put the excerpt in the comments and ill answer.

"fire and ice" is one of robert frost's most popular poems. it was published in december 1920 in harper's magazine and in 1923 in his pulitzer prize−winning book new hampshire. it discusses the end of the world, likening the elemental force of fire with the emotion of desire, and ice with hate.

c. the power of desire is greater than the power of hate.