Which of the Following Studies Best Supports Festinger's Cognitive Dissonance

Multiple Choice

Which of the following studies best supports Festinger's cognitive dissonance theory?

A) a study showing that voters express more support for their candidate right before voting than they do right after voting
B) a study showing that people value academic achievement more strongly after reading education-related words than after reading sports-related words
C) a study showing that people express more confidence in a bet right after making it than they do right before making it
D) a study showing that introspection leads to less attitude-behavior consistency than does an absence of introspection