As a Situation Becomes More Intimate, We Reduce Space; Other

As a situation becomes more intimate, we reduce space; other people perceive this intimacy when they watch others converse. What factors are being displayed?

A) How the age of the invader will influence spacing.
B) How the level of attractiveness of males and females affects spacing.
C) The things that affect our body zones based on our cultural backgrounds.
D) How status affects spacing norms.
E) None of the above.