ask answer for one adv exam question

shiyiming

%let one=two;
%let two=three;
%let three=last;
what does &&&&&one resolve to?
A. one
B. two
C. three
D. last

I think the answer is C. Do you think it is right?
Thanks,

shiyiming

is the answer is D for the question below?

1. In which situation, SELECT is more efficient than IF/THEN ELSE?
A. In the small amount selected data which is randomly distributed for numeric variables.
B. In the small amount selected data which is uniformly distributed for numeric variables.
C. In the large amount selected data which is randomly distributed for character variables.
D. In the large amount selected data which is uniformly distributed for character variables.