The aggregate supply curve and national income curve ______________ with each other. (1)
(a) Coincide (c) Overlap
(b) Both (a) and (c) (d) Neither (a) nor (c)

Dear Student,
Aggregate supply and national income are same so there curves also should be the same.
So, the answer will be b) Both a & c because these curves may coincide and overlap at the same time.
Regards