Which two PCI devices can achieve a maximum transfer rate of 267 Mbps?

Which two PCI devices can achieve a maximum transfer rate of 267 Mbps? (Select TWO)

A.
PCI 32-bit card at 66 MHz

B.
PCI 64-bit card at 33 MHz

C.
PCI 32-bit card at 33 MHz

D.
PCI 64-bit card at 66 MHz