[orlov]

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OK. So I put E on my test for 1, and the teacher said that A was the correct answer. I can see how C is the correct answer as in PPF, it your going from one to another, the opportunity cost of producing one increases as you move along the graph (if that made any sense.)

But I still think that E makes the most sense, meh I guess I have to talk to professor about it.

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your teacher is a retard.

However i am now more opting towards c.

Because the question asks for the law of opportunity cost. Answer e is more a way of defining opportunity cost.

But then again strictly speaking there is no law of opportunity cost, only a law of increasing opportunity cost.