What did poleis refer to in ancient greece?

the city-state
the people
the ruler
the family

It had referred to a city-state.  Here is why:
A polis is a city-state in ancient Greece.  Usually it had consisted of a little village sort of place that was in the polis.  The polis had contained a hill that a sort of palace sat on called an acropolis.  It was usually built by the sea.
Well hope that helped a bit!  
Sorry if you don't understand it because you didn't learn it yet.  I hope that you understand it better when the teacher goes over it.  I also have put a diagram so you can see the polis better.

Communicating with the dead was common, it wasn’t seen as bizarre or weird,” explains murch. “it’s hard to imagine that now, we look at that and think, ‘why are you opening the gates of hell? ’

What are the statements?