Respuesta :
A central idea is used to show the important details which are in a story and they are developed in different ways.
What is a Central Idea?
This refers to the main reason for writing a literary piece and this can also be referred to as the theme.
Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.
Read more about central ideas here:
https://brainly.com/question/2684713