The correct answer is the bystander effects.
The "bystander effect" or "bystander indifference," a social psychology theory, states that when other people are present, people are less likely to help a victim.
The "bystander effect" is the incapacity to assist someone in need while others are present. A spectator is less likely to offer assistance, even in an emergency, when they are physically or mentally surrounded by others than when they are alone, according to study.
The majority of general bystander impact research has been done in non-violent, dangerous crises. Significantly more assistance was provided when the person was by themselves than when they were surrounded by other people in low-danger settings.
Participants confronted with an emergency whether alone or with another person were equally likely to assist the victim in scenarios with high potential for risk.
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