单选题 Touching other people without their permission, reading someone else's mail, and using personal possessions without asking permission are all examples of
A. antisocial behavior.
B. manipulation.
C. poor boundaries.
D. passive-aggressive behavior.

【正确答案】 C

【答案解析】The described behaviors indicate poor personal boundaries, which is the inability to differentiate between self and others. Poor boundaries are symptoms of antisocial and passive-aggressive behavior. Manipulation is an attempt to control another person.