Answer:
Bystander effect
Step-by-step explanation:
Bystander effect: The bystander effect is also referred to as bystander apathy.
In social psychology, the term bystander effect is defined as any situation in which a person does not help the victim in an emergency if anyone else is present there at the given moment.
In the bystander effect, the number of people is directly proportional to the act of helping a victim in a given situation.
In the question above, the given statement describes the bystander effect.