Which of the following is an example of a negative externality?
a. air pollution
b. an increase in sales
c. an increase in market size
d. the production of a substitute

Select the correct answer. gina's father has diabetes and takes insulin. he recently had a liver transplant, after which he was put on anti-rejection medicines. this has made his insulin less effective. which term best characterizes gina's father's situation? a. drug synergism b. drug antagonism c. drug misuse