How many variables/observations will come from the below program? data work.roth_ira; start = 1000; do year = 1 to 30; savings + 5000; do month = 1 to 12; int = savings * (.05/12); savings + int; end; output;
end; run;
a) 4 variables, 12 observations
b) 4 variables, 30 observations
c) 5 variables, 12 observations
d) 5 variables, 30 observations