A Computer Needs to Have a Power Supply Replaced

Multiple Choice

A computer needs to have a power supply replaced. The computer has a floppy drive, one PATA optical drive, two SATA hard drives, an external SATA hard drive, and an external USB hard drive. How many unique power connection types are be needed from the power supply for all this storage?

A) 1
B) 2
C) 3
D) 4
E) 5
F) 6