问题：

[单选]

public class Threads3 implements Runnable { 
public void run（） { 
System.out.print（”running”）； 
} 
public static void main（String[] args） { 
Thread t = new Thread（new Threads3（））； 
t.run（）； 
t.run（）； 
t.start（）； 
} 
} 
What is the result？（） 

A .  Compilation fails.
B .  An exception is thrown at runtime.
C .  The code executes and prints “running”.
D .  The code executes and prints “runningrunning”.
E .  The code executes and prints “runningrunningrunning”.