What is an example of a program or duty that federal state and local governments work on together

Which of the following will definitely occur  in the coffee market if coffee producing countries experience an exceptionally good harvest at the same time a new study is released demonstrating the health benefits of  coffee? select the correct answer below: a) the equilibrium price of coffee will rise.b) the equilibrium price of coffee will fall.c) the equilibrium quantity will increase.d) the equilibrium quantity will fall.