The #MeToo and other civil and human rights movements recently highlighted the social and job market barriers facing various segments of our society, including Generation Z. Suppose a country is operating inside the production possibility frontier (PPF) due to barriers stopping women, women of color, LGBTQIA and other minorities from fully contributing to the economy, then: a) The opportunity cost of producing another unit of a good when the economy is inside the PPF is zero b) The opportunity cost of producing another unit of a good when the economy is inside the PPF is greater than zero but increasing c) The PPF must be a downward-sloping straight line d) The PPF is upward-sloping