Oh I see, well, you should still get at least 4 marks on the diagram, and at least 2/4 more for that explanation, so it shouldn't be too bad ^^ Perhaps you could've referred to the figure.
I just talked of the adv of monetary policy in the form of interest rates being able to raise AD in the economy, drew the keynesian LRAS and AD and showed a shift in demand. Showed how more employment would result as the economy employs more of its factors of production, including labor, to soak up the extra demand. Then said of how the employment would lead to more consumer confidence, even more AD, etc.
Disadvantage of monetary policy in the form of AD going too high up on the Keynesian LRAS, causing just demand pull inflation and little else, talking about government failure and how it might not know how low to set the interest rate and also that it's not very viable to reduce the interest rate below 0% (so it's a policy with 'finite uses'
Adv of fiscal: can encourage certain ways of spending the money, and not just mindlessly increase AD as in the case of monetary policy. Talked about how the gov could use expansionary fiscal policy to encourage R&D in companies to increase long term dynamism in the economy and increase trend rate of growth, together with increasing the AD by increasing business confidence through tax exonerations and subsidies, which will cause an increase in investment (part of AD). Hitting two birds with one stone thing
Disadv of fiscal: opportunity cost as the gov would have to increase budget deficit to pay for the stuff if unwilling to raise taxes as well. Crowding out of the private sector. Could've spent money on education/healthcare.
And a crappy conclusion I didn't have time to finish.
All in all it was terrible compared to what I used to manage :/ How'd you manage?