The following SAS program is submitted: data numrecords; infile 'file specification'; input @1 patient $15. relative $ 16-26 @; if relative = 'children' then input @54 diagnosis $15. @; else if relative = 'parents' then input @ 28 doctor $ 15. clinic $ 44-53 @54 diagnosis $ 15. @; input age; run; how many raw data records are read during each iteration of the DATA step execution? A. 1 B. 2 C. 3 D. 4 Can anyone please explain what can be the answer and why?
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