What is difference between private, protected, and public in C#?

Private: Access is limited to the containing class Public : Access is not restricted Protected : Access is limiting to the class or type derived from the containing class.Protected variables can accessed using inheritance.

public The type or member can be accessed by any other code in the same assembly or another assembly that references it. private The type or member can only be accessed by code in the same class or struct. protected The type or member can only be accessed by code in the same class or struct, or in a derived class. internal The type or member can be accessed by any code in the same assembly, but not from another assembly. protected internal The type or member can be accessed by any code in the same assembly, or by any derived class in another assembly.