What Is an Alternative to Copying an Exported Process App

What is an alternative to copying an exported process app zip file and importing manually, when publishing a process app to multiple environments?

A) Share the database resource of the development activiti-app environment with the production activiti-app environment.
B) Use App Designer 'share' feature to replicate the app to each production activiti-app environment.
C) Export the app as a zip, and copy it to the activiti-app/workflow directory of each production server for automatic publishing.
D) Use an activiti-admin application to deploy the existing process app from the activiti-app development environment to each activiti-app production environment.