The following SAS program is submitted:

data work.month;   
date = input('13mar2000',date9.);
run;

Which one of the following represents the type and length of the variable DATE in the output data set?

A. numeric, 8 bytes
B. numeric, 9 bytes
C. character, 8 bytes
D. character, 9 bytes

为什是答案是A？我选的是B