Which combination of actions should be taken to meet these requirements?

A solutions architect is implementing a document review application using an Amazon S3 bucket for storage. The solution must prevent an accidental deletion of the documents and ensure that all versions of the documents are available. Users must be able to download, modify, and upload documents.

Which combination of actions should be taken to meet these requirements? (Choose two.)
A . Enable a read-only bucket AC
C . Enable versioning on the bucket.
D . Attach an IAM policy to the bucket.
E . Enable MFA Delete on the bucket.
F . Encrypt the bucket using AWS KM

Answer: BD