hemanthp
Recently, the research and development departments at major pharmaceutical companies have been experimenting with new injections that provide the boost in iron that anemic children need to reverse their condition. These companies have expressed confidence that children who are suffering from anemia will be cured relatively simply through the use of such biochemical supplements.
In concluding that the biochemical remedy being developed will have its desired effect, the pharmaceutical companies assume that
major pharmaceutical companies have the primary responsibility to cure childhood anemia
a low iron level in the body is the major factor influencing the incidence of anemia in children
a diet rich in iron cannot improve the conditions of children suffering from anemia to the point that biochemical supplements would become unnecessary
children afflicted with anemia will find out about and submit to injections that can reverse their conditions
the use of biochemical supplements is the safest way to cure anemia in children
I have serious issues with the wording here, since it's open to two completely legitimate interpretations; the phrase "children who are suffering from anemia will be cured" could mean two different things. It could mean "*all* children with anemia will be cured" (this is the interpretation that they intend), or it could mean "this supplement is a successful cure for anemia". I find the second interpretation far more reasonable than the first. To give a parallel example, if a veterinarian says "this injection will cure rabies in dogs", he or she surely doesn't mean "because of this injection, rabies will, in the future, be completely eradicated in dogs". Instead he or she means "if a dog takes this injection, the dog's rabies will be cured".
Now, if you take "children who are suffering from anemia will be cured" to mean "this supplement is an effective cure for those who take it", then D is not a relevant assumption at all; a supplement can be an effective cure for a disease even if no one actually uses it. Only B would be a good answer in that case. I disagree with the posts above which dismiss B as an assumption; it is an assumption in the argument. The stem tells us that iron boosts are *necessary* to reverse anemia. The stem does not tell us that iron boosts are *sufficient* to reverse anemia. The iron supplements will only reverse anemia if nothing in addition to iron is needed to reverse anemia. To give a different example, if I say "I need a tent to go camping. I have a tent, so I can go camping", then I'm assuming that a tent is *all* I need to go camping - that is, I'm assuming that the tent alone is sufficient for camping, and that I don't need, say, food as well. Since B suggests that iron supplements are the only thing required to reverse anemia, it does provide a missing assumption in the argument.
Now, if instead you interpret "children who are suffering from anemia will be cured" to mean that anemia will be eliminated because of the supplement, then D is certainly a good answer, but I think that's a bizarre way to interpret the question stem here.
Given how I interpret the question, I think B is a better answer than D here, though someone who interprets the question differently can certainly justify answer D. I find the whole question problematic, so I wouldn't suggest devoting much time to it.