Class can be internal not protected or not even protected internal. Class can have only two access modifiers Public and internal.

if any field or method having access modifier protected internal then this field available to the others assemblies class and as well as class whose inharits this class.

www.geekswithblogs.net/mahesh

You can have nested class as private or protected.

like

public class outer

{

protected class inner

{

int i;

]

}

Class can be internal not protected or not even protected internal. Class can have only two access modifiers Public and internal.

Check C# reference. Class can be protected internal