In the scene when virginia is on the beach in the snake pit, the crossing of internal and external diegetic sound borders accomplishes what narrative goal? (a) it gives the viewer a better sense of the spatial dimensions of the mise-en-scene.(b) it confuses the viewer in order to then reveal virginia's mental state.(c) it provides the viewer with an intimate understanding of the protagonist's sexuality.(d) it gives the viewer access to the larger political context of the story.