Historical context should be your answer
They gained exclusive exploration and trading rights over half the world, which helped expand its wealth and power and limited competition from rival European powers.
The correct answer is clan
They were grouped in clans that lived all over Scotland. They were formed around the idea of shared identity and shared history of a smaller population. Every clan has their own flag and their coat of arms and usually have a chief but it is not necessary and there are numerous clans that don't actually have a chief.