What is the total maximum bandwidth for a 16-port switching module to the crossbar on a MDS 9509 wit

What is the total maximum bandwidth for a 16-port switching module to the crossbar on a MDS
9509 with dual Supervisor Modules?

A.
160 Gb/s full

B.
20 Gb/s full

C.
40 Gb/s full

D.
80 Gb/s full