Configure Lake Formation tag-based access control to grant cross-account permissions on the required datasets to the marketing analytics accounts is the correct choice because it enables fine grained, cross account access without copying data and it reduces ongoing administration.

With Configure Lake Formation tag-based access control to grant cross-account permissions on the required datasets to the marketing analytics accounts you assign LF tags to databases, tables, and locations and grant permissions by tag values. This allows the marketing analytics accounts to get table, column, and location level access across accounts and it scales as producers add new resources because tag based policies apply automatically.

Replicate the selected datasets into a centralized shared services account and create an IAM role trusted by the marketing accounts is incorrect because replicating the 40 TB of assets creates data duplication and extra pipelines and it increases IAM and operational work. It still does not offer the simple, tag driven governance that Lake Formation provides.

AWS Resource Access Manager to share the underlying S3 buckets with the marketing analytics account is incorrect because RAM shares at the bucket or resource level and does not integrate with Lake Formation tag based permissions. It cannot enforce table or column level controls so governance and auditing are less precise.

Run Lake Formation Grant permissions in each producer account for the specific marketing users is incorrect because per resource grants across multiple producer accounts do not scale and they create high administrative overhead. Manual grants must be updated as datasets proliferate which increases operational burden.

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