Can someoen at GMATclub please expalain one CR questions from official GMAT prep test.
I think B is 180 deg wrong choice.
Conclusion : per capita expenditure on the prescrption drug continued to go up inspite of the deterring legislation. Hence there are 2 cases - population is decreasing or the drug company has started on a new project that involved cheaper prescription alternatives. Since B is gone. A is the answer by POE.
C - Explains the sustainability of profits but does not explain the per capita increase in expenditure of the pres drug
D - Irrelevant - "generic drug"
E - Irrrelevant - "foreign manufacturer"