You are creating an Oracle Cloud Infrastructure $($OCI$)$ Data Science job that will run on a recurring basis in a production environment. This job will pick up sensitive data from an Object Storage bucket, train a model, and save it to the model catalog.

How would you design the authentication mechanism for the job?

A$.$ Create a pre$-$authenticated request $($PAR$)$ for the Object Storage bucket, and use that in the job code.

B$.$ Use the resource principal of the job run as the signer in the job code, ensuring there is a dynamic group for this job run with appropriate access to Object Storage and the model catalog.

C$.$ Store your personal OCI config file and keys in the Vault and access the Vault through the job run resource principal.

D$.$ Package your personal OCI config file and keys in the job artifact