What can be inferred about the flooding problem in U. S. from the passage
A.The tragedy happening in 2005 is an exception from a country that barely witness floods so frequently.
B.Flood is not such a serious problem as hurricanes and other forms of natural disasters in U. S..
C.That is an extreme example to represent the serious problem of flood U. S. has been faced with for many years.
D.The example in 2005 is typical, just like any other year in U. S..