The following SAS program is submitted:

data work.passengers;
if OrigPassengers = . then OrigPassengers = 100;
TransPassengers = 100;
OrigPassengers = .;
NonPaying = 10;
TotalPassengers = sum (OrigPassengers, TransPassengers);
run;

Which one of the following is the value of the TOTALPASSENGERS variable in the output data set?

A. 100
B. 110
C. 200
D. . (missing numeric value)