Hi,
The answer for this question is B. I understand why B is right, but I was not able to fully eliminate why D is wrong (I understand why A, C, and E are wrong). The reason why I am still not sure why D is wrong is because D states that, "the highER costs..." thus implying that brand-name drugs are more expensive than generic drugs and thus supporting the conclusion of the passage (that generic drugs costs less but are just as good as brand-name drugs).
Any #help would be appreciated!
Thanks!