Answer: The best example of literary nonfiction is C. An essay that relates an activist's experiences fighting for civil rights.
Explanation: Literary nonfiction is a genre of writing that consists in narrating events that actually occurred in real life, but using literary techniques. Essays, biographies and memories can be included within this genre. Moreover,<u> the best example of literary nonfiction among the options is C.</u> (an essay that relates an activist's experiences fighting for civil rights)<u> because it makes reference to situations that actually took place in the real world and that affected a real person </u>(an activist that fought for civil rights).