The sentence that suggest that doctors, like lawyers are part of superficial middle-class world of nineteenth century Rusia is:
The doctor put on just the same air towards him as he himself put on towards an accused person.
I’d say A. The setting is where and when a story happened, A provides the info that the story is happening on a rocky ledge. So yeah, I’d say it’s A.
Make eye contact around the room, be enthusiastic, dont slouch, never have back towards audience