According to the data presented below and analysing it through a cost-benefit relation, which of the following medicine would be better to choose? data: medicine 1 - efficiency 85% - nephrotoxicity 5% in pacients, with an additional cost of r$ 2.500,00. - treatment total cost r$200,00 medicine 2 - efficiency 95% - no side effects - treatment total cost r$ 700,00 medicine 3 - efficiency 99,9% - no side effects - treatment total cost r$ 2.500,00 a) medicine 1, with a r$600,00 cost. b) medicine, with a r$700,00 cost. c) medicine 2, with a r$600,00 cost. d) medicine 2, with a r$700,00 cost. e) medicine 2, with a r$750,00 cost. the answer is b. i need to know why, .