Wei has allergy symptoms. he has gone to his regular doctor and an allergy specialist, but he wasn�t given a prescription by either doctor. instead, he was advised to buy any over-the-counter medicine. while he was in the specialist�s waiting area, he read a magazine where he saw three ads for an allergy medicine called sneezeless. a week later, in a drug store, wei says to his brother, �my doctor says sneezeless works great. i�ll buy that one.� wei and his doctor never discussed sneezeless. wei has fallen victim to which of the following errors?