14. Which of the following statements is true?

a	If AE > GDP, firms will find themselves with (unwanted) unplanned inventory investment on top of what was already planned.
b	If AE < GDP, then there will be less inventory investment than firms had planned as firms sell more than what they expected.
c	In equilibrium, there are no unplanned changes in inventories, so firms dont need to change production at all.
d	All of the above.
e	Only a) and b)