According to Cognitive Dissonance Theory,which of the Following People Is

According to cognitive dissonance theory,which of the following people is most likely to change his attitude?

A) Emil, who is a long-time political conservative who argues in favour of liberal policies as part of a required class assignment
B) Sam, who is paid $100 to tell people how interesting a particular experiment is
C) Ethan, who makes his living telling people why satellite is better than cable
D) Cinar, who opposes unions, but makes up a pro-union argument just to annoy his parents