The correct answer would be option A, Of the 100 people who witnessed a crime in a local part, no one reported it.
The above mentioned statement is an example of the bystander effect.
Step-by-step explanation:
Bystander effect is basically a social psychological concept or claim. According to this effect, when there are a lot of people at a place, then a victim is less likely to get help from others in this situation.
This is because everyone thinks that the other person would help the victim and they stand quietly without the urge to help the victim.
So in the given question, due to the bystander effect, everyone will think that the other person will file a report for the crime, but in reality, no one will file a report.
Learn more about Bystander Effect at:
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