A mid-sized company is experiencing higher network bandwidth utilization due to a recent acquisition. The network operations team is asked to scale up their one Cisco FTD appliance deployment to higher capacities due to the increased network bandwidth. Which design option should be used to accomplish this goal?
A. Deploy multiple Cisco FTD HA pairs in clustering mode to increase performance.
B. Deploy multiple Cisco FTD appliances in firewall clustering mode to increase performance.
C. Deploy multiple Cisco FTD appliances using VPN load-balancing to scale performance.
D. Deploy multiple Cisco FTD HA pairs to increase performance.
