Which solution will meet these requirements?

Explanations:

Creating a new transit gateway in the development account and establishing a peering connection to the shared services account does not align with the requirement for easy resource recreation in the development environment. It would require manual configuration for peering each time resources are recreated, which contradicts the need for a seamless connection setup.

By enabling automatic acceptance for the transit gateway in the shared services account and using AWS Resource Access Manager (RAM) to share the transit gateway with the development account, the development team can easily recreate the connection as needed without requiring manual intervention. This setup allows for straightforward management of access to shared resources while meeting the company’s requirements.

This option suggests creating a VPC endpoint with an endpoint policy for access, which is not the correct approach for connecting to a transit gateway. VPC endpoints are for accessing services privately without using an internet gateway or NAT, and they don’t facilitate direct VPC-to-VPC connectivity, which is needed in this case. Additionally, it does not address the need for the development team to recreate the connection easily.

While using an EventBridge rule to invoke a Lambda function for accepting transit gateway attachment requests might work, it adds unnecessary complexity to the solution. The primary requirement is for the development team to easily manage their connection to the shared services account, which is more efficiently handled through AWS RAM as described in option B, rather than relying on a Lambda function for manual attachment acceptance.