Which line in this excerpt from The Still Alarm by George S. Kaufman demonstrates the use of understatement?

Answer: D. Bob: Yes, that is pretty bad. H'm. (To Ed). I say, you really ought to see this - -

The lines presented above can be considered an understatement because as you may notice there is something important and urgent Ed needs to say however, the message is delivered as if it is not as important as it really is.