1.a new bakery opens downtown. which circumstance would most likely be a negative externality?

a. customers of the old bakery see a drop in prices.
b. neighboring stores get more foot traffic.
c. the city government collects added tax revenue.
d. the old bakery down the street loses some customers.

2.roger always purchased insurance for the 10 years he owned an expensive speedboat. since he never had an accident, the premiums he paid were

a. beneficial because roger was protected from financial loss
b. fruitless because roger received nothing in return
c. unnecessary because roger values long term security
d. wasted because roger preferred protection to present cash

i have no clue what these answers are, can someone me ? ?