Base 45

A raw data record is listed below:
--------10-------20-------30
son,Travis,

The following output is desired:
relation   firstname
son Travis

Which one of the following SAS programs reads the data correctly?

A. data family / dlm = ',';
infile 'file-specification';
input relation $ firstname $;
run;

B. options dlm = ',';
data family;
infile 'file-specification';
input relation $ firstname $;
run;

C. data family;
infile 'file-specification' dlm = ',';
input relation $ firstname $;
run;

D. data family;
infile 'file-specification';
input relation $ firstname $ / dlm = ',';
run;