The government in an economy recently reduced the tax rates on income for individuals. This prompted an increase in consumers' income was effectively increased by the reduction in tax rates. The government notices that since the change in tax rates, prices have begun to increase throughout the economy and the inflation rate is increasing. What type of occurring in the economy?

A. deflation
B. cost-push inflation
C. disinflation
D. demand-pull inflation

D. demand-pull inflation