As a result of the Behavioural revolution, the emphasis in Political Science shifted to the behaviour of individuals in political situations. Consequently, ‘power relations’ constituted the core concern of politics. The Behaviouralists viewed the state as the repository of power. Thus, the concept of power became fundamental in Political Science. The change of emphasis from state to power has broadened the area of political inquiry. It shifted the focus of attention from mere structures and institutions to actions and processes. Thus, in the words of H. D. Lasswell, politics became “the study of shaping and sharing power” and a political act is “one performed in power perspectives”.

The correct answer is A.