Phil Kunz, a Sociology Professor, Once Performed a Study in Which

Multiple Choice

Phil Kunz, a sociology professor, once performed a study in which he sent 578 Christmas cards to a sample of complete strangers living in Chicago, Illinois. He received a total of 117 cards in return as well as several phone calls-despite the fact that he did not know any of these people. Kunz's findings provide good evidence of ____.

A) reciprocity
B) the rule of law
C) audience inhibition
D) cooperation