getCustomerInfo()方法如下,try 中可以捕获三种类型的异常,如果在该方法运行中产生了一个IOException,将会输出什么结果( )。Public void getCustomerInfo() {Try {// do something that may cause an Exception} catch (java.io.FileNotFoundException ex){System.out.print("FileNotFoundException!");} catch (java.io.IOException ex){System.out.print("IOException!");} catch (java.lang.Exception ex){System.out.print("Exception!");}}
选项：

A: IOException!
B: IOException!Exception!
C:FileNotFoundException!IOException!
D: D•FileNotFoundException!IOException!Exception!