单项选择题

A.data tmp;set SASHELP.workers(firstobs=10obs=15);if ELECTRIC>260;run;proc print;run;
B.data tmp;set SASHELP.workers(firstobs=10obs=15);where ELECTRIC>260;run;proc print;run;
C.data tmp;set SASHELP.workers(firstobs=10obs=5);where ELECTRIC>260;run;proc print;run;
D.data tmp;set SASHELP.workers(firstobs=10obs=5);if ELECTRIC>260;run;proc print;run;