One of the Things Demonstrated by the Study by Zanna

Multiple Choice

One of the things demonstrated by the study by Zanna and Cooper was

A) an unanticipated reward diminishes intrinsic interest.
B) people must properly attribute the arousal caused by cognitive dissonance before their attitudes will change.
C) people must be mistaken about the source of their arousal before their attitudes will change.
D) an unanticipated reward diminishes the extrinsic interest.