What might a bystander of a crime do?

they might call the police, but if the police are already there they are most likely gonna record-

Bystanders can play a crucial role in preventing hate crime and they can do so without putting themselves at risk. “Bystanders are present in up to 86% of cases of crimes. The more violent the crime, the less likely there will be any observers there.”

answer; /// the above statement is (true);

i am also pretty sure it is c