阅读下面程序 public class Test implements Runnable public static void main(String[] args) ______ t.start(); public void run() System.out.println( Hello! ); 程序中下画线处应填入的正确选项是
A.Test t=new Test();
B.Thread t=new Thread();
C.Thread t=new Thread(new Test());
D.Test t=new Thread();