show work please

The figure below shows the national market for mopeds in a small country. Dd and Sd are the domestic demand and supply curves of mopeds, respectively. The figure below shows the marginal external benefit curve (MEB) of the country from the production of domestic mopeds. If there is initially free trade, and then a $50 per unit subsidy is given to the domestic producers of mopeds, domestic consumption of mopeds would