Порядок статических и обычных конструкторов

new Derived();

class Base
{
    static Base() => Console.WriteLine("static Base");
    private readonly int _b = Log("field Base");
    public Base() => Console.WriteLine("ctor Base");
    protected static int Log(string s) { Console.WriteLine(s); return 0; }
}
class Derived : Base
{
    static Derived() => Console.WriteLine("static Derived");
    private readonly int _d = Log("field Derived");
    public Derived() => Console.WriteLine("ctor Derived");
}