You need to enable traffic between multiple groups of Compute Engine instances that are currently running two different GCP projects. Each group of Compute Engine instances is running in its own VPC. What should you do?
A.
Verify that both projects are in a GCP Organization. Create a new VPC and add all instances.
B.
Verify that both projects are in a GCP Organization. Share the VPC from one project and request that the Compute Engine instances in the other project use this shared VPC.
C.
Verify that you are the Project Administrator of both projects. Create two new VPCs and add all instances.
D.
Verify that you are the Project Administrator of both projects. Create a new VPC and add all instances.
Shared VPC allows an organization to connect resources from multiple projects to a common Virtual Private Cloud (VPC) network, so that they can communicate with each other securely and efficiently using internal IPs from that network. When you use Shared VPC, you designate a project as a host project and attach one or more other service projects to it. The VPC networks in the host project are called Shared VPC networks. Eligible resources from service projects can use subnets in the Shared VPC network
https://cloud.google.com/vpc/docs/shared-vpc
"For example, an existing instance in a service project cannot be reconfigured to use a Shared VPC network, but a new instance can be created to use available subnets in a Shared VPC network."
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