Answer:
The factor that should be the key driver and create the interpersonal relationships should be option c. proximity.
What is the interpersonal relationship?
It means the relationship that lies between the person who has some kind of goals, interest. As per the social physiological theory, the proximity principle with respect to the individual created the interpersonal relations that have the same kind of taste, preference, likes, dislikes, etc. So based on this, the third option is correct.
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Explanation: