Refer to the exhibit
A company added a second data center IRF 1 and IRF 2 connect on direct Ethernet cables. What is the simplest, most flexible and resilient option for the data center connection?
A. link aggregation between IRF 1 and IRF 2
B. VPLS solution between IRF 1 and IRF 2
C. EVI network between IRF 1 and IRF 2
D. IRF 1 and IRF 2 combined into a single IRF virtual device