Your cloud developer is using the Oracle Cloud Infrastructure (OCI) Vault service to encrypt plaintext. She runs the following command using the OCI Command Line Interface (CLI) and encounters a service error.
What could be the most likely reason for this error?
A. The developer should pass the key version OCID instead of the key OCID.
B. The developer forgot to specify the region.
C. The plaintext needs to be in the JSON form.
D. The developer has the wrong endpoint.