I do believe it was Salem Poor if I am not mistaken.
These are "expert and referent power".
Referent power in authority is the capacity of a pioneer to
develop the regard and deference of his supporters in such ways that they wish
to resemble him. In short, referent power is showing others how it’s done.
While expert power depends on workers' observation that a chief or some other
individual from an association has a high state of learning or a specific
arrangement of aptitudes that different representatives or individuals from the
association don't have.
A and C for sure but thats all i can help with
Change from nomadic herding to settled farming
