Suppose we have the country of "Oliphant-opolis". Its labor force is 150 million people. We have the following table. For the different amounts of real GDP, we have the total number of unemployed, the number of people who are structurally unemployed and the number of people who are frictionally unemployed. Real GDP Total Structural Frictional $19.2 trillion 22.5 million 4.5 million 3 million $21.6 trillion 15 million 4.5 million 3 million $24 trillion 7.5 million 4.5 million 3 million What is the potential GDP? Group of answer choices $19.2 trillion $24 trillion $28 trillion Not enough information