单项选择题
下列程序的输出结果为( )。
public class Reentrant
public synchronized void a()
b();
System.out.println("here I am,in a()");
public synchronized void b()
System.out.println("here I am,in b()");
public static void main(String args[])
Reentrant r=new Reentrant();
r.a();
A.here I am,in a()/here I am,in b()
B.here I am,in b()/here I am,in a()
C.here I am,in a()
D.here I am,in b()