I couldn't post part C and D: part C is Does this production possibilities curve reflect the law of increasing opportunity costs?Explain Part D is What assumptions could be changed to shift the production possibilities curve?

6. The following is a set of hypothetical production possibilities for a nation. Automobiles Beef (thousands Combination (thousands) of tons) 10 2 9 M O O W D 4 6 4 8 O a. Plot these production possibilities data. What is the opportunity cost of the first 2,000 automobiles pro- duced? Between which points is the opportunity cost per thousand automobiles highest? Between which points is the opportunity cost per thousand tons of beef highest? b. Label a point F inside the curve. Why is this an inef- ficient point? Label a point G outside the curve. Why is this point unattainable? Why are points A through E all efficient points