The model you are describing aligns most closely with the c. Informal process.
The informal process emphasizes the discretion exercised by criminal justice agents, acknowledging that their decisions may not strictly follow formal rules and laws. This discretion can help manage the complexities and high caseloads in the criminal justice system, albeit with the potential risk of personal bias.
The other options, such as the Due Process model and the Crime Control model, have different focuses and frameworks that do not emphasize discretionary judgment to the same extent.