Brocade Exam Questions

Which two Brocade solutions would be used to accomplish this?

A customer requires a design that includes data in-flight encryption over 20 km long distance links.
Which two Brocade solutions would be used to accomplish this? (Choose two.)

A.
Brocade 6510 switch

B.
Brocade 6505 switch

C.
Brocade DCX 8510-4 Backbones with FC16-32 blades

D.
Brocade DCX 8510-8 Backbones with FC8-32E blades