I dunno how to do it and what diagram to draw

M Gmail YouTube Instagram SECTION D. Short Questions (20 markS) Answer ALL questions in this section. A respiratory disease breaks out in Country A. The government advises the public to wear masks when they leave their homes. At the same time, a ban is imposed on local producers regarding the export of masks to other countries. Explain, with the aid of a diagram, under what condition the market price of masks in Country A would increase. (6 marks) The government also considers imposing an effective price ceiling on hand sanitisers. WITHOUT using any diagram, explain why the full cost of obtaining the hand sanitisers would NOT necessarily decrease after the imposition of the effective price ceiling. (3 marks) SI effer catch