以下程序运行结果是（ ）

public class Ex20 {

public int div(int a, int b) {

try {

return a / b;

}catch (ArithmeticException e) {

System.out.print(" ArithmeticException ");

}catch(Exception e){

System.out.print(" Exception");

} finally {

System.out.print("finally");

}

return 0;

}

public static void main(String[] args) {

Ex20 demo = new Ex20();

System.out.print(" 商是：" + demo.div(9, 0));

}

}
A
Exception finally 商是：0
B
ArithmeticException finally 商是：0
C
finally商是：0
D
编译报错