A Customer Needs a New Compute Environment Based on HPE

A customer needs a new compute environment based on HPE Synergy with VMware vSphere 6.5. This needs to interact with the customer's exiting network consisting of 300 independent global sites. Each site has 15 unique VLANs. What network technologies would you recommend to meet the customer requirements?

A) NVGRE increasing the amount of separated Layer 2 segments
B) VxLAN as it allows flexibility and suitable for multitenant environment
C) RDMA as it increases host efficiency and virtualization performance
D) VLANs as it supports up to 4094 VLAN ids