What is IOptions in .NET Core and How Does It Work?

Question

Hello everyone,

I am trying to understand the IOptions interface in .NET Core. While I understand that it is used for configuration management, I am looking for clarity on the following points:

1. What exactly is IOptions in .NET Core?
2. How does it work internally?
3. How can we use it in a practical scenario, for example, reading app settings or configuration files?
4. How is IOptions different from IConfiguration?

It would be great if someone could provide a simple example or use case demonstrating how to use IOptions.