Probably 1b, but drafting based on position is not something any team should do, with the possible exception of catcher.
By the time they reach the majors, many, many players will be in a different position from the one they played when drafted. But very few seem to move into catcher. It does happen, With former VCU shortstop Brandon Inge being one example, but it’s rare.
Not sure when Realmuto went from SS to catcher; he was told to switch by a Marlins’ scout but it might have been prior to being drafted...