What is MEF?

MEF stands for Managed Extensibility Framework. It is a library that allows the host application to consume external extensions without any configuration requirement.

MEF stands for Managed Extensibility Framework. It is a library in the .NET Framework that enables greater flexibility and extensibility in applications by allowing them to be composed of loosely coupled parts or components.

The correct answer would delve into its functionality, highlighting its role in facilitating the development of modular and extensible applications. Additionally, you might mention its features such as attribute-based programming model, discovery, and composition capabilities, which allow components to be easily discovered and integrated into applications at runtime.