5. MUo Po= MUA/PA implies that: a. When an individual is maximizing his utility, the terms of trade must equal the slope of his indifference curve. b. When an individual is minimizing his utility, the terms of trade must equal the slope of his indifference curve. c. When an individual is maximizing his utility, the terms of trade must equal the origin of his indifference curve. d. When an individual is minimizing his utility, the terms of trade must equal the origin of his indifference curve. e. When an individual is minimizing his benifit, the terms of trade must equal the slope of his indifference curve