Final answer:
In the Wedding Cake Model of Crime, most criminal matters occur at the layer of misdemeanors, which represents the least serious category of crimes and makes up the bulk of criminal cases. Correct option is d.
Step-by-step explanation:
Most criminal matters occur at the layer of misdemeanors on the Wedding Cake Model of Crime. This model is a way of illustrating that not all crimes are of equal seriousness and, therefore, do not receive the same level of attention from the criminal justice system.
The four tiers of this model, starting from the top, are: celebrated cases, serious felonies, lesser felonies, and misdemeanors. Most criminal cases involve misdemeanors, which are less serious crimes compared to felonies and often equate to less severe punishments.