What is the difference between 3 C# courses?

Question

I've been on this website for over 6 years or so. I now came back to refresh my knowledge and I see there are three options for C#: Introduction to C#, C# Intermediate and C#. What is the difference between those three and what's the best (I just completed introduction to C#, should I move on to intermediate or simply C#?)?

Answer 1

open the couse, check the moduls and lessons.
this is the way to know what is suitable for you :-)
but I think: after the introduction comes the intermediate....

(I first did the c#, and the other 2 were released later, but of those as I remember, I made the intermediate earlier)