MCQ will test your ability to differentiate between market-based and interventionist supply-side policies.
When evaluating supply-side polices in essay responses, demonstrate critical thinking by acknowledging that privatisation has been used for so long that there is little left to privatise and perhaps a better way forward is to improve competition policy & regulation.
Remember, the private sector will also be increasing supply in an economy (it is not only up to the government) as they are incentivised to increase their profits.