What did Cupach and Spitzberg describe as a repeated non-threatening invasion of a person's privacy by an acquaintance who desires or assumes a close relationship?

A) obsessive relational intrusion
B) stalking
C) surveillance behaviors
D) obsessive-compulsive stalking

Obsessive Relational Intrusion

Unwanted and invasive behaviors by one individual towards another in attempts to establish or restore intimacy.

Non-Threatening Invasion

An approach or action that enters someone's personal space in a manner perceived as safe or non-intimidating.

Acquaintance

A person one knows slightly, but who is not a close friend.