I think it's the citizens maybe
Answer: look honestly i am not sure but i think the answer is a
Explanation: as you can know where the setting is ( near where the charter Thames does flow )
The sentence in the excerpt that would best describe an explicit example of setting would be the first one which is, 'I remember only the dry September of the dirt roads and grassless yards of the shantytown where I lived'. This is because it gives the picture of where the scene took place.