RIGHT! The type of expansion slots you have will determine if you
can use ISA, PCI, EISA, VESA, etc. types of expansion cards.
No. The BIOS will have been set to recognize cards in the slots, but
answer A is correct.
No. The type of device controllers you have - IDE or SCSI
may actually be determined by the expansion slots available, although
most IDE interfaces are not through cards.
No. Serial or parallel ports usually are related to COM or LPT ports.