You have important legal hold documents in a Cloud Storage bucket. You need to ensure that these documents are not deleted or modified. What should you do?

A. Set a retention policy. Lock the retention policy. B. Set a retention policy. Set the default storage class to Archive for long-term digital preservation. C. Enable the Object Versioning feature. Add a lifecycle rule. D. Enable the Object Versioning feature. Create a copy in a bucket in a different region.