What is the difference between these ways of getting current directory?

What is the difference between these ways of getting current directory?

They all give the same result, the location of folder that contains the
exe that is being executed. I am sure there are no good or bad methods in
the .net BCL. They are all appropriate in particular circumstances. Which
one is appropriate for which scenario?
var appBaseDir = AppDomain.CurrentDomain.BaseDirectory;
var currentDir = Environment.CurrentDirectory;
var dir = Directory.GetCurrentDirectory();
var path =
Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);