The answer is: call and response
In most Latin american music, the lyric that written in second line is a form of response (or commentary) that given to the lyric that is written in the first line. This call and response pattern is made in order to represent human connection or religious interaction between humans and diety.
Pros: Power is centralized within a leadership team, rather than involving everyone in every decision.
People can participate in activities, relationships, and work while the group in power handles the larger issues of the society.
An oligarchy strives to keep the status quo, which breeds conservatism instead of taking on risky ventures.
It can foster creativity and innovation because people are free from worries about running society.
Cons: The ruling class controls policies and legislation, and ends up with much more wealth than the rest of society.
As the ruling class gains more expertise, it tends to exclude outsiders, making it tough for people to break in.
It prevents new perspectives and diversity.
It can limit available supplies to certain classes, fix prices, provide selective benefits, and restrict the economy by hindering basic supply and demand functions.
When people feel they can't join the ruling class, they may no longer feel compelled to follow the rules set by the ruling class, leading to rebellion, disruption, and war.
Answer:
A They represent Bantu migrations.
Explanation:
The Banti migrations are a series of major migrations of the Bantu people that shared a common language spoken by the majority of the group and with a series of variations among them they moved their original nucleus around the central-west part of africa to the west to finally land on the subsaharan part of the african subcontinent.