What are two ways to accomplish this goal?

You are using logical systems to segregate customers. You have a requirement to enable
communication between the logical systems. What are two ways to accomplish this goal?
(Choose two.)

A.
Use a shared DMZ zone to connect the logical systems together.

B.
Use an interconnect LSYS to connect the logical systems together.

C.
Use a virtual tunnel (vt-) interface to connect the logical systems together.

D.
Use an external cable to connect the ports from the two logical systems.