A Company Wants to Launch a Group of Amazon EC2

Multiple Choice

A company wants to launch a group of Amazon EC2 instances that need to communicate with each other with the lowest possible latency. Which combination of actions should a SysOps administrator take when launching these instances? (Choose two.)

A) Launch instances in different VPCs with a VPN tunnel.
B) Launch instances in different VPCs with VPC peering enabled.
C) Launch instances in a cluster placement group.
D) Launch instances in a spread placement group.
E) Launch instances with enhanced networking enabled.