Concept:Pressure groups are classified according to their organisational structure and the methods they adopt while pursuing their demands.
Explanation:Anomic pressure groups are loosely organised, spontaneous and often lack a permanent structure.
Such groups resort to violence, riots, protests or other unconventional means when they become frustrated with the normal channels of influence.
Unlike associational groups, which include professional bodies and trade unions, anomic groups do not follow formal and institutionalised procedures.
Associational groups operate within recognised legal and bureaucratic frameworks.
Labour groups are formal organisations like workers' unions, which press their demands through dialogue, negotiation and collective bargaining.
These groups rarely depend on violence because they already have an established and recognised platform for expressing their grievances.
Since anomic groups have no settled rules or procedures, their activities tend to be irregular, emotional and sometimes violent.
Consequently, the use of violence as a tool becomes the distinguishing feature of anomic pressure groups.
Therefore, a pressure group that uses violence to press home its demands is best described as anomic.
Answer:A. anomic