An externality is athat arises from production and that falls on someone other than the producer; or asomeone other than the consumer. A$.$ revenue; price $.$cost or benefit; cost or benefit C$.$ marginal cost; marginal benefit D$.$ marginal benefit; marginal costWhich of the following is an example of a negative externality? A$.$ A young couple wants to have a university fund that will pay $$30,000$ semi$-$annually for $8$ years. B$.$ More people are buying automobiles before the arrival of the festive season. C$.$ The central bank has raised its interest rates by $0\mathrm{.}2$ percent. D$.$ The new factory in the area has increased children's respiratory ailments.Which of the following is an example of a positive externality? A$.$ A lower inflation rate would benefit most consumers. B$.$ Singapore has adopted a comprehensive savings plan for all workers known as the Central Provident Fund. C$.$ Promoting generic drugs would benefit people. D$.$Compulsory flu shots for all students prevents the spread of illness in the general public.stion $30$