Final answer:
The least likely purpose of descriptive writing is to explain a topic in a factual, logical, and straightforward manner, as it instead aims to paint a vivid picture through sensory description and language.
Step-by-step explanation:
The least likely purpose of descriptive writing among the given options is c) To explain a topic in a factual, logical, and straightforward manner. Descriptive writing is primarily used to paint a vivid picture in the reader's mind through detail and sensory language. It aims to depict an event, describe a person, place, object, or event by utilizing the writer's ability to show rather than tell. By engaging the five senses - sight, sound, smell, touch, and taste - descriptive writing helps the reader experience the text in an immersive way.
Less concerned with factual, logical explanation, descriptive writing instead provides a rich, vivid experience that can make the reader feel as though they are part of the scene. It uses strong, descriptive language and imagery and often includes metaphors and dialogue to enliven the text and engage the reader's imagination. It is also important that all details provided are relevant to the narration, helping to keep the reader interested and connected to the material.