The bystander effect refers to the fact that:
Select one:
a. if one bystander helps in an emergency then no one else will.
b. people are less likely to help in an emergency if there are other people present than if they are alone
c. people who are trained in emergency rescue techniques often forget them when they are bystander
d. if one bystander stares up at the sky and points other passerby will stop and look up too.
