Transferable pollution rights would allow firms to move into an area that is already as polluted as allowed by EPA standards

Suppose that when NBC produces 1 new drama series in a season it gives up the chance to produce 3 new reality shows. This means that

A) the opportunity cost of a new drama series is 1/3 of a new reality show. B) the opportunity cost of a 1 new reality show is 1/3 of a new drama series. C) NBC has a comparative advantage in producing new drama series. D) NBC has a comparative advantage in producing new reality shows.

All the supply of peppermint oil is produced from mint plants grown in one county by several competitive growers (the number of growers is not limited). The quality of land in the county varies greatly

Would you expect the long-run market supply curve to slope upward, downward, or remain constant? Why?