Malvine Has Always Campaigned for Clean Air and Water, Often

Malvine has always campaigned for clean air and water, often doorbelling for candidates running for political office on a clean environment platform. She is dismayed to learn that her favourite restaurant is polluting the fresh water stream that runs behind it but she continues to eat lunch there twice a week. She later cancels her membership in an environmental group, saying that the group is too radical. Which of the following psychological processes is evident here?

A) self-fulfilling prophecy
B) fundamental attribution error
C) cognitive dissonance
D) self-serving bias