After empirically analyzing the association between development and democracy, we could conclude that: a. Economic development, measured in per capita income, negatively affects the probability of democratic transition. b. The higher the level of economic development, measured in per capita income, the higher the probability that a democratic country will remain a democracy over time. c. Economic development, measured in per capita income, strongly impacts the probability that a country will transition to democracy. d. The association between economic development and political regime is spurious, and per capita income does not predict the probability that a country will remain a democracy