Which of the following is true with respect to the Production Possibilities Frontier (PPF)? O A. Movement from a position interior to the frontier to frontier itself is called intensive growth. B. Movement outside the frontier to a new frontier is called extensive growth. C. If a firm markets a new product and gains market share in its industry, this creates intensive growth. D. Increased deficit spending shifts the PPF to the right. E. None of the above are correct.