How can I achieve this selection in SAS

How can I achieve this selection in SAS

say I have a SAS table tbl which has a column col. This column col holds
different values say {"a","s","d","f",...} but one is MUCH more present
than the other (say "d"). How can I do a select only this value
It would be something like
data tbl;
set tbl;
where col eq "the most present element of col in this case d";
run;