The aggregate expenditures line will be

A

downward sloping.

B

horizontal at the equilibrium level of aggregate expenditures.

C

upward sloping with a steeper slope than the line.

D

upward sloping with a flatter slope than the line.           

On a $-$line diagram $($or Keynesian Cross$),$ the horizontal axis measures

$$

$,$ while the vertical axis measures

$$

the real interest rate

real GDP

real aggregate expenditure

$.$