How many unique power connectors will the PSU need to accommodate the listed devices?

A technician needs to install an appropriate PSU into a new machine. The technician needs
available power for a floppy drive, two older IDE hard disks, a single SATA hard disk, and an IDE
optical drive. How many unique power connectors will the PSU need to accommodate the listed
devices?

A.
2

B.
3

C.
4

D.
5