Which change is needed to increase throughput?

A customer asks an architect to help troubleshoot low throughput in their high-performance compute (HPC) environment. All 70 HPC nodes have a single 10Gb connection to a 96 port 10Gb switch. The FlashBlade is connected to their dedicated HPC switch with 8x10Gb connections. The HPC application is using a single shared S3 bucket for the data being processed.

Which change is needed to increase throughput?
A . Add more uplinks to the HPC switch.
B. Add more VLANS to FlashBlade.
C. Add more IPs to the existing VLAN
D. Add more nodes to the HPC cluster

Answer: A