Final Answer:
Burglars who are in their late teens or early twenties and do not plan as well as known or professional burglars are known as: 3) Novices.
Step-by-step explanation:
In the realm of criminal activity, burglars in their late teens or early twenties who lack the strategic planning and experience of known or professional counterparts are classified as novices. Novices are individuals who are new to a particular activity or field and, in this context, they lack the expertise and finesse associated with more seasoned burglars.
These individuals may exhibit less sophistication in their planning and execution of criminal activities, often making more impulsive decisions. Unlike experts or masterminds who have honed their skills over time, novices are characterized by their inexperience and relatively undeveloped techniques.
The term "novice" implies a lack of mastery or proficiency, particularly in the context of criminal endeavors. It is crucial for law enforcement and security measures to understand these distinctions in order to tailor appropriate responses and preventive strategies against different levels of criminal behavior.
To sum up, the correct answer is 3) Novices, as it accurately describes less experienced burglars in their late teens or early twenties.