Can someone please help me do a PPF graph as well how to get the following calculations:

Corn Beef

(bushels per year)                      (bushels per year)

        1000                                                   0

        800                                                     900

        600                                                     1200

        400                                                    1400

        200                                                    1450

       0                                                         1500

Following questions:

A. Draw a graph of the farm's PPF

B. Can the Farm produce 500 bushles of corn and 500 pounds of beef per year?

C. Can the farm produce 800 bushels of corn and 1200 pounds of beef a year?

D. What is the opportunity cost of the farm increasing beef production from 900 pounds to 1200 pounds per year?

C. If the farm produces 400 bushels of corn and 1400 pounds of eef a year, is the farm using its resources efficiently? Explain