A company needs to connect seven of their Windows-based servers to a DS4000 storage server.   The DS4000 only has two host-side connections, and each server has two HBAs.  Which of the following is the lowest cost solution to provide no single points of failure?()
A、Implement two 8-port switches design with ISLs
B、Implement two 16-port switches design with ISLs
C、Implement two 8-port switches design without ISLs
D、Implement two 16-port switches design without ISLs