Very persuasive. But if you need more help you can enter the full question
The Relative Clause is “who are five in number”. It is a type of dependant clause (it need the main clause in order to convey its meaning properly) that has the same function of an adjective; that is to say, it modifies a noun “friends”.
James Granger was based off of a real life figure named James Rorimer, who was a Curator. Hope this helps
Answer:
These are the causes of inequality