The "Theatre of the Fourth Wall Removed" Refers to the Central

The "theatre of the fourth wall removed" refers to the central convention of realism that

A) the stage was conceived to be the same as life in a real-world setting except that,in the case of the stage,one wall-the proscenium opening-had been removed.
B) the human animal is seen to be like a rat in a maze,bound by the strictures of four symbolic walls: society,family,or economics.
C) the "fourth wall" of the mind creates a frame around human experience just as a fourth wall completes a room.
D) the three walls of Marxist economics,Darwinian biological determinism,and Freudian psychological determinism leave the fourth wall of political oppression absent.