How is it possible that both programs and data can be stored on the same floppy disk ?

How is it possible that both programs and data can be stored on the same floppy disk ?

A. A floppy disk has two sides, one for data and one for programs
B. Programs and data are both software, and both can be stored on any memory device
C. A floppy disk has to be formatted for one or for the other
D. Floppy disks can only store data, not programs