Researchers Staged an Incident in Which a Man Fell Down

Researchers staged an incident in which a man fell down with a cry of pain and raised his pant leg to reveal a bloody injury.The staged scene was repeated in both rural and urban areas.When Amato counted the number of passersby who stopped to help the man, he found that

A) no matter where the staged incident occurred, people from small towns helped more.
B) people in small towns helped more than people in urban areas.
C) because the man was a stranger, people in rural areas helped less.
D) women in rural areas helped more than men, but in urban areas there was no gender difference.