How many port groups capable of sustaining two-way 12.8 Gb/s of bandwidth does a 24 port 8- Gb/s module have?

How many port groups capable of sustaining two-way 12.8 Gb/s of bandwidth does a 24 port 8- Gb/s module have? Select the best response.

A.
eight port groups

B.
six port groups

C.
two port groups

D.
four port groups