Which is a database service that CANNOT be provisioned in the Oracle Public Cloud?

The “Oracle Public Cloud” typically refers to OCI’s broadly accessible cloud services. Autonomous Database on Shared (Option A) and Dedicated Infrastructure (Option B) are available in OCI. However, Exadata Database Service on Dedicated Infrastructure (Option C) is not a standard offering in the public OCI context—it’s tied to specific deployments like Database@Azure or on-premises Exadata, not the public cloud. Option D is fictitious. Oracle’s documentation clarifies Exadata’s dedicated nature outside standard public offerings.