On a Brocade DS 16-B2 (Btocade 3×00) series switch, how many buffer-to-buffer (BB) credits can

On a Brocade DS 16-B2 (Btocade 3×00) series switch, how many buffer-to-buffer (BB) credits can be allocated to a port?

A.
27

B.
108

C.
64

D.
54