According to E. T. Hall, who coined the term proxemic bubble to refer to our personal, three-dimensional space,

A) we feel threatened when people we do not know enter our proxemic bubble.
B) the proxemic bubble is largely the same size, regardless of culture.
C) most people consciously use their proxemic bubble, especially when interacting with enemies.
D) positive emotions tend to cause the proxemic bubble to get larger, excluding more people.

Proxemic Bubble

The personal space or invisible boundary around individuals that they prefer not to be invaded by others, varying in size across different cultures and contexts.

E.T. Hall

An American anthropologist recognized for his groundbreaking work on the understanding of nonverbal communication and cultural interactions.

Personal Space

The physical space immediately surrounding an individual, which they consider their own and expect others to respect as a boundary.