24 One can express Keynesian model in ISLM when A 1S is vert

24. One can express Keynesian model in ISLM when: A. 1S is vertical B. LM is vertical C. LM is horizontal D. IS is horizontal

One can express the Keynesian model in IS-Lm when the LM curve is horizontal because that will be the time when the increase in the spendings and expenditures will be fully effective. Hence the correct answer is (C) i.e LM is horizontal.