In an Experiment,people Were Given a Handbill as They Entered

Multiple Choice

In an experiment,people were given a handbill as they entered a public parking garage.The more litter there was on the floor of the garage,the more likely people were to add to it by dropping their handbill.This experiment illustrates

A) role conflict experienced between littering or not littering.
B) differing norms for whether littering was acceptable in that situation.
C) superordinate goals in place for not littering.
D) how the number of people present affects littering behavior.