In the experiment by Reno, Cialdini, and Kalligren (1983), the confederate’s littering behavior was expected to remind participants of a/an __________ norm against littering in the clean environment....

In the experiment by Reno, Cialdini, and Kalligren (1983), the confederate’s littering behavior was expected to remind participants of a/an __________ norm against littering in the clean environment. Seeing the confederate picking up someone else’s litter invoked the _____________________ norm that littering is wrong in both the clean and littered environments.

a. Social; descriptive

b. Injunctive; descriptive

c. Descriptive; injunctive

d. Informational; injunctive