The User Backup Client Has Sufficient Resources and the Production

Multiple Choice

The user backup client has sufficient resources and the production network resources are relatively tight. The amount of data scheduled to be backed up weekly is 1-2T. The backup window is 3 hours, using source-side de-duplication, deduplication ratio of 3, the bandwidth utilization value of 0.8.  Based on this, what kind of networking can meet the backup business needs and investment least?

A) GE LAN-free
B) 10GE LAN-free
C) FC LAN-free
D) server-free