Which of the following is an example of imperfect competition? too few firms are selling a product. buyers and sellers do not have enough information to make informed choices. too many firms are selling a product. spillover costs are paid by consumers.

The persian wars started when emperor darius i began an invasion of greece. what caused darius to decide to attack greece? a. greek pirates had raided persia's merchant ships and coastal towns. b. greek armies had attacked and taken over land that belonged to persia. c. greek city-states had supported rebellions in the persian empire. d. greek leaders had declared independence from the persian empire.