An Elderly Man Is Sitting on the Sidewalk in Front

Multiple Choice

An elderly man is sitting on the sidewalk in front of the shopping mall holding his head. The articles he had purchased and a torn bag lay on the sidewalk next to him. People continue to walk in and out of the doors of the mall behind him without anyone stopping to help. This bystander apathy is best explained by the principle of:

A) reciprocation.
B) commitment and consistency.
C) the door-in-the-face effect.
D) social proof.