Which combination of steps should the solutions architect take to implement this solution?

Explanations:

Creating an S3 access point for each application ensures that access can be controlled and limited to specific VPCs. Updating the bucket policy to require access from the access point enforces security compliance with the requirement that no public internet access is allowed.

An interface endpoint for S3 is not necessary because S3 supports gateway endpoints, which provide a direct route from the VPC to S3 without needing public internet access. Additionally, endpoint policies apply to gateway endpoints, not interface endpoints for S3.

Creating a gateway endpoint for Amazon S3 in each application’s VPC allows access to S3 without traversing the public internet. Configuring the endpoint policy to allow access to the S3 access point ensures that applications can only access the S3 resources they need.

While creating access points in each AWS account is a feasible approach, it complicates management and may violate the principle of least privilege if not implemented carefully. Each access point should be tied to the single owning account, not duplicated across accounts unnecessarily.

Creating a gateway endpoint for the data lake’s VPC does not meet the requirement of allowing access from multiple VPCs or accounts. Furthermore, an endpoint policy directly allowing access to the S3 bucket does not address the need for controlled access through specific access points tied to VPCs.