Which of the following is the central idea of a story?

The central idea of a story is the main point or main message that the author is trying to convey to the reader. It is the key theme or message that ties the entire story together.

For example, in "To Kill a Mockingbird" by Harper Lee, the central idea is about the impact of racism and prejudice on society. In "The Great Gatsby" by F. Scott Fitzgerald, the central idea is about the corrupting influence of wealth and materialism.

In general, the central idea is the overarching theme that drives the plot and character development in a story.