- Band: A band is a small, typically nomadic group of people with simple social structures. Bands are usually egalitarian, with little formal leadership.
- Tribe: A tribe consists of multiple bands or extended families. Tribes have more complex social structures than bands, but they still lack centralized political authority.
- Chiefdom: A chiefdom is a hierarchical social system with a permanent leader (the chief). It represents a more complex political system than a tribe and includes different social classes.
Step 1: Understanding the political systems.
- Band is the simplest political system, typically with minimal social structure.
- Tribe is more complex than a band and consists of several bands united under a common leader or group of leaders.
- Chiefdom is more complex than a tribe and involves a central leader, often with defined roles and social stratification.
Final Answer:
\[
\boxed{\text{The correct answer is (1) Band, Tribe and Chiefdom.}}
\]