class Flow {  public static void main（String [] args） {  try {  System.out.print（"before "）；  doRiskyThing（）；  System.out.print（"after "）；  } catch （Exception fe） {  System.out.print（"catch "）；  }  System.out.println（"done "）；  }   public static void doRiskyThing（） throws Exception {  // this code returns unless it throws an Exception  } }  可能会产生下面哪两项结果？（） 

• A、before
• B、before catch
• C、before after done
• D、before catch done