Base SAS 60

The following SAS program is submitted:data work.passengers;
data work.passengers;
if OrigPassengers = . then
OrigPassengers = 100;
TransPassengers = 100;
OrigPassengers = .;
NonPaying = 10;
TotalPassengers = 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)
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