Elements of national power are the factors that constitute the actual and potential power of a state. Some of these factors are subject to human impulses, organization and capabilities; some are largely beyond it. A short list of the elements of national power would include: the size of the state; its geopolitical location; the number, technical and intellectual quality of scientific elites; the size of the military forces, their technological level, equipment, firepower, force projection capabilities, training, culture and morale; the fertility of the territory it controls; the abundance and variety of natural resources – including but not limited to energy resources –; the size of the population, its demographics, its level of human development; its level of economic development, including the size of GDP, the per capita distribution of GDP, the quality, extent and diffusion of the infrastructure (system and networks of transportation, energy, communication etc.); the strength and diversity of industrial development; the quality of the educational system; the organizational success, quality and competency of research and development activities (the number of original patents, the commercialization ratio of research and development efforts etc.); the nature and strength of the political, social and economic system and institutions; the quality of its foreign policy and diplomats; the quality of leadership; the national character and morale of the population. The correct answer is D.