Final answer:
Essays, biographies, diary entries, speeches, letters, and political or historical writings are considered B) non-fictional prose, which is a form of truth-telling literature organized in a narrative structure and often enhanced with literary devices.
Step-by-step explanation:
Essays, biographies, diary entries, speeches, letters, science and nature writing, and writings about politics or history are all forms of B) non-fictional prose.
Prose is a form of language that has a natural flow of speech and a grammatical structure that is typical for the spoken and written language, organized into paragraphs and sentences, without the systematic structure of meter or rhyme found in poetry.
Creative nonfiction is a genre of writing that includes works like personal narratives, memoirs, and literary journalism, wherein the author presents real events using literary devices such as descriptive imagery, setting, plot, conflict, characters, and metaphors, often in a narrative form.
This type of prose can range from more personal and lyrical to factual and objective, but always aims to tell a true story in an artistic way.