United States Postal Service zip codes consist of five digits.
In addition to the five-digit zip code, there is a trailing plus
four zip code. For the five-digit zip code, the first four digits
can be any of the digits 0-9 and the fifth any of the digits 0-8.
For the plus four zip code, the first three digits can be any of
the digits 0-9 and the fourth any of the digits 1-9.
How many possible five-digit zip codes are there?
A.
90,000
B.
80,000
C.
100,000
D.
None of these