Regarding Crowding and Density, Which of the Following Statements Is/are

Multiple Choice

Regarding crowding and density, which of the following statements is/are TRUE?

A) Whether high density is experienced as crowding may depend on relationships among those involved.
B) Crowding refers to subjective feelings of being over-stimulated by social inputs or a loss of privacy.
C) People who live in crowded conditions often become more aggressive or become guarded and withdrawn.
D) All of these statements are true.