How Will an Increase in Autonomous Investment Affect the Aggregate

Multiple Choice

How will an increase in autonomous investment affect the aggregate expenditure line?  

A)  It will shift the aggregate expenditure line upward. 
B)  It will shift the aggregate expenditure line downward. 
C)  It will result in an upward movement along the aggregate expenditure line. 
D)  It will result in a downward movement along the aggregate expenditure line.