Many individuals take antihistamine medications to alleviate the symptoms of allergies. Although all antihistamines are essentially similar, there is sufficient variation among the available formulas to make some more effective than others for any particular individual. Therefore, by trying different antihistamine formulations, any allergy sufferer can eventually find one that is effective.
Which of the following, if true, would most strengthen the conclusion drawn in the argument above?
(A) Antihistamines are the only types of medications proven effective in treating allergy symptoms.
(B) At least one antihistamine will relieve any individual’s allergy symptoms.
(C) The effectiveness of an antihistamine is partially determined by the drug’s specific formulation.
(D) The specific formulation used most often by allergy sufferers is not the one that would be most effective for the greatest number of allergy sufferers.
(E) Most allergy sufferers experience allergy symptoms that are typical of many different types of allergies.