AWS Certified Solutions Architect - Professional (#79)

An organization is setting up a highly scalable application using Elastic Beanstalk. They are using Elastic Load Balancing (ELB) as well as a Virtual Private Cloud (VPC) with public and private subnets. They have the following requirements:

- All the EC2 instances should have a private IP - All the EC2 instances should receive data via the ELB's.

Which of these will not be needed in this setup?

Launch the EC2 instances with only the public subnet.
Create routing rules which will route all inbound traffic from ELB to the EC2 instances.
Configure ELB and NAT as a part of the public subnet only.
Create routing rules which will route all outbound traffic from the EC2 instances through NAT.