Post-behaviouralism arose in response to behaviouralism, with its emphasis on quantitative, value-free research, the kind of research that seems to take place in a vacuum, without any incorporation of societal values or movements, without any consideration for solving real problems in the complexities of the modern-day world. Since research and results in behaviouralism are largely quantitative and precise, this slogan is meant to attack that aspect of the movement, thus the correct answer is "C." The post-behaviouralist finds it better to be vague than non-relevantly precise. A vague result might result in more meaningful application to the problems of society than a precise answer that is completely irrelevant to the problems that must be solved in a society. For example, is it more helpful to know how quickly people will salivate in response to smelling and seeing food, or is it more helpful to know that world hunger is a problem that can be solved with more equitable distribution of resources, agricultural advances, and changes in diet? The former is likely to be quite precise, but to what could this knowledge be applied? The latter incorporates a value, which is that everyone in the world should have food security, and it posits three somewhat vague solutions, but solutions that are at least relevant to solving the problem. Of course, there is far more to the movement than this, but that is the essential meaning of the movement's slogan.