Multiple choice To format a high density floppy into double density, use FORMAT A:/D FORMAT A: /9 FORMAT A: /D/V FORMAT A:/4 Reveal answer Fill a bubble to check yourself D Correct answer Explanation The FORMAT A:/4 command formats a high-density floppy disk as double-density (360KB). The /4 switch tells DOS to format a 1.2MB disk in 360KB format. Other options (/D, /9, /D/V) are not valid DOS FORMAT switches for this purpose.