All of the following statements accurately describe the outcome of an expansionary fiscal policy that involves an increase in government spending except
A. an increase in government spending, G, always decreases private investment, I
B. the increase in real output and income folowing an increase in government spending leads to an increase in consumption, C
C. the increase in real output following an increase in government spending may not necessarly increase investment if the central bdak pursues a contractionary policy
D. an increase in government spending increases real output through the multiple effect, which in turn increases the real demand for money