【单选题】

下列程序的执行结果是______。 classA5 extends Thread { boolean b;A5 (boolean bb) { b = bb; } public void run() {System.out.println(this.getName() + "运行"); } } public class Testl5 { public static void main(String[] args) { A5 a1 = newA5(true); A5 a2 = newA5(false); if(a1.b)A1. start(); if (a2 .b)A2.start(); }}

A、Thread-0
B．Thread-1
C．Thread-0
D．Thread-1 Thread-1 Thread-0