The correct answer is A. A traditional IBM Case Manager move to Cloud Pak for Business Automation follows a controlled migration sequence because the Case Manager environment includes FileNet Content Platform Engine, IBM Content Navigator, Case Manager databases, LDAP configuration, case solutions, target object stores, and runtime dependencies. The migration flow begins with assessing readiness, including supported versions, database readiness, LDAP continuity, object-store preparation, and known limitations. The next stage is preparing to move, which includes exporting case solutions, backing up relevant artifacts, preparing the OpenShift cluster, and gathering values in the migration planning sheet. The administrator then generates the custom resource by using the migration scripts, validates it, and deploys Cloud Pak for Business Automation by applying the CR to the operator. Finally, post-migration activities are required, including viewer-path updates, plug-in handling, case event emitter configuration, case history support, and case instance indexing. Options B, C, and D either misstate the sequence or omit required assessment and CR-generation detail. References/topics: Case Manager migration, readiness assessment, preparing case solutions, generating and deploying CR, post-migration steps.