Which of these allows you to catch non-CLS compliant Exceptions?

1) catch(Exception ex)
{
Console.WriteLine(ex.Message);
}
2) catch
{
throw;
}

3) catch(IOException ex)
{
Console.WriteLine(ex.Message);
}

Option 1 is wrong :
since it allows us only CLS Compliant exceptions

Option 2 is the answer :
It will catch CLS as well as non-CLS compliant
Exceptions. It means throw the Exception back to the caller.

Option 3 is wrong :
As only a particular CLS exception will
be caught