Answer:
The answer is letter A: In the bathrooms containing the strong warnings they likely to find scrawls that read "Says Who?" and "What Are You Going to Do About This?".
Step-by-step explanation:
The reason people are likely to react that way is explained by the Reactance Theory (when persuasion attempts boomerang); because when people feel like their freedom of doing the graffiti, for example, is threatened so they react with an unpleasant state of defiance and by that they feel like their sense of personal choice is restored.