Which of the Following Is the Best Example of Reactance

Which of the following is the best example of reactance?

A) A parent using reverse psychology tells his daughter that it's her bedtime and that he does not want her to go to bed. The daughter promptly goes to her room and falls asleep.
B) An employee obeys her boss's request to stay late at work and help him finish a report that is due the next day.
C) A political leader encourages all of her supporters to head to the polls and vote in the next election. The next day, the majority of her supporters vote.
D) All of the above