If investment increases by $50 billion, by how much will aggregate demand change? Aggregate demand will:
A. Increase by less than $50 billion because there will be fewer goods and services produced for consumption expenditure
B. Increase by more than $50 billion because the increase in aggregate income induces an increase in consumption expenditure
C. Increase by exactly $50 billion because investment is a component of aggregate demand
D. Probably decrease by $50 billion, but it depends on the change in aggregate supply