Final answer:
The missing process is configuration management, which involves tracking and controlling changes to software, including version control.
Step-by-step explanation:
The missing process in this scenario is A. Configuration management. Configuration management is the process of tracking and controlling changes to software, including version control.
Version control ensures that code is properly managed, allowing developers to access previous versions, track changes, and collaborate effectively. By not using version control, the developers are not properly managing the configuration of the code being released for testing.