What provides evidence and details that support the main point of a text?

The correct choice identifies supporting details as the elements that provide evidence and elaboration for the main point of a text. Supporting details enhance the central theme or argument by offering specific examples, facts, statistics, explanations, or anecdotes. They help to clarify and substantiate the main idea, making it more credible and understandable to the reader. Without these details, a main point may seem vague or unsubstantiated, but by including relevant supporting information, the author strengthens the overall message and engages the audience effectively.

In contrast, the main idea conveys the primary thought or argument of the text, while the topic merely refers to the subject matter. A position often reflects the author's stance on an issue but doesn't necessarily provide the elaboration needed to substantiate the main point. Thus, supporting details play a crucial role in reinforcing the main idea and ensuring that it resonates with the reader.