A new restaurant opens in your town, it only has seating for 10 people, and the reviews are great. Many people call and ask for a reservation, but are told there are no seats available. Soon the restaurant expands and can now seat up to 50 people, now everyone is able to be seated and there are even some empty seats on most nights. This illustrates the effect of
a.
negative externalities.
b.
lobbying for new policies.
c.
the public good.
d.
supply and demand.