A 99.99% SLA requires HA across AZs, and centralized management in VCF implies a single management domain. Option B, 'Configure a stretched L2 VLAN,' ensures management components (e.g., vCenter, NSX Manager) communicate seamlessly across AZs, supporting centralization and redundancy. Option E, 'Choose two close proximity AZs and configure a stretched management workload domain,' extends the management domain across AZs with low latency (<5ms RTT recommended), achieving HA and meeting the SLA via synchronous replication and failover. Option A contradicts centralization with distinct domains, C isolates components (reducing HA), and D (Live Recovery) is for DR, not primary HA. VCF 5.2 supports stretched clusters for this purpose.