Final answer:
The correct word to complete the sentence is 'faction.' A faction is a group within a larger group that holds different, often conflicting, views or values.
Step-by-step explanation:
The word that best fits the blank in the sentence 'The observers noted that an agitated ____ had quickly developed within the larger group' is 'faction'.
By definition, a faction is a group within a larger group that has different ideas and opinions from the rest of the group. This group is usually contentious or in conflict with the larger group's norms. The concept of factions is often tied to social studies or political science because factions are a common phenomenon in politics and sociology.
They can arise from different opinions and interests – whether they concern religion, property, economic status, or political alignment – and can lead to divisiveness within a larger organization or society.
The formation of factions is a response to the human tendency to align with others who share similar interests or perspectives, and this can lead to conflict within a larger group.
The observation of a faction forming quickly would suggest that a subset of the group became swiftly organized around a common interest or goal, typically in opposition to another group or prevailing idea.