According to Information Presented by the Authors of Your Text

According to information presented by the authors of your text, people who have lived in the same place longer tend to be more likely to help.Why?

A) They feel more interdependent with their neighbors and attached to the community.
B) People who stay in the same place are usually altruistic.
C) They feel empathy more easily.
D) Because everyone around them is an in-group member.