Calling a method on a static class given its type name and method names as strings

Question

How could I go about calling a method on a static class given the class name and the method name, please?

For example:

Given System.Environment

Answer 1

System.Reflection.Assembly info = typeof(System.Environment).Assembly;

Type t = info.GetType("System.Environment");
MethodInfo m = t.GetMethod("GetFolderPath");

object result = m.Invoke(null, arguments);