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SAS Certified Base Programmer 123 Questions (15)

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 during execution?

A. 1
B. 2
C. 3
D. 4

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