Examlex
Which of the following is NOT a proprietary instant messaging (IM) service?
Social Distance
The perceived or actual level of emotional, physical, or social separation between individuals or groups.
Personal Space
An area with invisible boundaries that surrounds us.
Personalization
A way of marking our territory with improvements or decorations that are unique reflections of our personal identity.
Planned Obsolescence
A business strategy where a product is intentionally made to become obsolete or outdated after a certain period.
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