What term describes audience seating that is positioned just below stage level?

The term that describes audience seating positioned just below stage level is "Stalls." In theatre terminology, stalls refer to the seating area that is typically located on the main level of the auditorium, often slightly below the stage, allowing for a unique viewing angle of the performance. This seating arrangement can enhance the audience's experience by providing a more immersive perspective of the action on stage, as they are closer to the performers.

The other terms have different meanings in the context of theatre. The proscenium arch is a structure that frames the stage and separates it from the audience, creating a picture-frame effect. A racked stage refers to a staging setup where the stage floor is sloped or inclined to allow for better visibility of the performers from the audience. A receiving house is a venue where theatrical productions, often touring shows, are hosted or received, not specifically related to the seating arrangement. Understanding these distinctions helps clarify why "Stalls" is the correct choice for seating just below stage level.