An economy has three types of transportation: highway, planes, and rail. Highway can transport 5 freight or 6 passengers Planes can transport 2 freight or 3 passengers Rail can transport 8 freight or 8 passengers (a) Calculate the opportunity cost of a passenger for each mode of transportation. Write down the formula you are using, plug in the values explicitly, and specify the units of your answer. Highway:5/6=8.33 Planes:2/3=0.67 Rail:8/8=1 (b) Construct the production possibilities schedule. It can have as many possibilities as you like, but four of them must be efficient. Label the efficient combinations A, B, C, and D