which nonfiction genre involves true accounts of only past periods or events

A. self-help

B. journalism

C.n how-to

D. historical

D. historical

The correct answer is D. historical. Historical nonfiction involves the true accounts of past periods or events. This genre focuses on the accurate portrayal of historical events, presenting them in a narrative or informative manner.

The correct answer is D. historical.

To arrive at this answer, let's break down each of the options:

A. Self-help: Self-help is a genre focused on personal improvement, providing guidance and advice on various aspects of life. It typically does not pertain exclusively to past periods or events.

B. Journalism: Journalism involves the reporting of current events and news. While it can include historical context or references, it is generally not limited to past periods or events alone.

C. How-to: How-to books provide step-by-step instructions on how to accomplish something, such as cooking, crafts, or home improvement. They may draw upon historical techniques or methods, but they are not solely focused on past periods or events.

D. Historical: The historical genre is concerned with the factual retelling and analysis of past periods or events. It aims to provide an accurate account of past occurrences based on research, evidence, and primary sources. This genre focuses exclusively on the study of history and chronicles events from various time periods.

Therefore, the nonfiction genre that involves true accounts of only past periods or events is D. historical.